623 lines
16 KiB
LLVM
623 lines
16 KiB
LLVM
|
; RUN: opt < %s -callsite-splitting -S | FileCheck %s
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; RUN: opt < %s -passes='function(callsite-splitting)' -S | FileCheck %s
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64-linaro-linux-gnueabi"
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;CHECK-LABEL: @test_eq_eq
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;CHECK-LABEL: Header:
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;CHECK: br i1 %tobool1, label %Header.split, label %TBB
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;CHECK-LABEL: Header.split:
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;CHECK: %[[CALL1:.*]] = call i32 @callee(i32* null, i32 %v, i32 1)
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;CHECK-LABEL: TBB:
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;CHECK: br i1 %cmp, label %TBB.split, label %End
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;CHECK-LABEL: TBB.split:
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;CHECK: %[[CALL2:.*]] = call i32 @callee(i32* nonnull %a, i32 1, i32 2)
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;CHECK-LABEL: Tail
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;CHECK: %[[MERGED:.*]] = phi i32 [ %[[CALL1]], %Header.split ], [ %[[CALL2]], %TBB.split ]
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;CHECK: ret i32 %[[MERGED]]
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define i32 @test_eq_eq(i32* %a, i32 %v) {
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Header:
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%tobool1 = icmp eq i32* %a, null
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br i1 %tobool1, label %Tail, label %TBB
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TBB:
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%cmp = icmp eq i32 %v, 1
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br i1 %cmp, label %Tail, label %End
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Tail:
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%p = phi i32[1,%Header], [2, %TBB]
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%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
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ret i32 %r
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End:
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ret i32 %v
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}
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;CHECK-LABEL: @test_eq_eq_eq
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;CHECK-LABEL: Header2.split:
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;CHECK: %[[CALL1:.*]] = call i32 @callee(i32* %a, i32 %v, i32 10)
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;CHECK-LABEL: TBB.split:
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;CHECK: %[[CALL2:.*]] = call i32 @callee(i32* %a, i32 1, i32 %p)
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;CHECK-LABEL: Tail
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;CHECK: %[[MERGED:.*]] = phi i32 [ %[[CALL1]], %Header2.split ], [ %[[CALL2]], %TBB.split ]
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;CHECK: ret i32 %[[MERGED]]
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define i32 @test_eq_eq_eq(i32* %a, i32 %v, i32 %p) {
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Header:
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%tobool1 = icmp eq i32* %a, null
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br i1 %tobool1, label %Header2, label %End
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Header2:
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%tobool2 = icmp eq i32 %p, 10
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br i1 %tobool2, label %Tail, label %TBB
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TBB:
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%cmp = icmp eq i32 %v, 1
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br i1 %cmp, label %Tail, label %End
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Tail:
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%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
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ret i32 %r
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End:
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ret i32 %v
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}
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;CHECK-LABEL: @test_eq_eq_eq_constrain_same_i32_arg
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;CHECK-LABEL: Header2.split:
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;CHECK: %[[CALL1:.*]] = call i32 @callee(i32* %a, i32 222, i32 %p)
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;CHECK-LABEL: TBB.split:
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;CHECK: %[[CALL2:.*]] = call i32 @callee(i32* %a, i32 333, i32 %p)
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;CHECK-LABEL: Tail
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;CHECK: %[[MERGED:.*]] = phi i32 [ %[[CALL1]], %Header2.split ], [ %[[CALL2]], %TBB.split ]
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;CHECK: ret i32 %[[MERGED]]
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define i32 @test_eq_eq_eq_constrain_same_i32_arg(i32* %a, i32 %v, i32 %p) {
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Header:
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%tobool1 = icmp eq i32 %v, 111
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br i1 %tobool1, label %Header2, label %End
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Header2:
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%tobool2 = icmp eq i32 %v, 222
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br i1 %tobool2, label %Tail, label %TBB
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TBB:
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%cmp = icmp eq i32 %v, 333
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br i1 %cmp, label %Tail, label %End
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Tail:
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%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
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ret i32 %r
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End:
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ret i32 %v
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}
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;CHECK-LABEL: @test_ne_eq
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;CHECK-LABEL: Header.split:
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;CHECK: %[[CALL1:.*]] = call i32 @callee(i32* nonnull %a, i32 %v, i32 1)
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;CHECK-LABEL: TBB.split:
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;CHECK: %[[CALL2:.*]] = call i32 @callee(i32* null, i32 1, i32 2)
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;CHECK-LABEL: Tail
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;CHECK: %[[MERGED:.*]] = phi i32 [ %[[CALL1]], %Header.split ], [ %[[CALL2]], %TBB.split ]
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;CHECK: ret i32 %[[MERGED]]
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define i32 @test_ne_eq(i32* %a, i32 %v) {
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Header:
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%tobool1 = icmp ne i32* %a, null
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br i1 %tobool1, label %Tail, label %TBB
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TBB:
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%cmp = icmp eq i32 %v, 1
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br i1 %cmp, label %Tail, label %End
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Tail:
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%p = phi i32[1,%Header], [2, %TBB]
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%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
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ret i32 %r
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End:
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ret i32 %v
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}
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;CHECK-LABEL: @test_ne_eq_ne
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;CHECK-LABEL: Header2.split:
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;CHECK: %[[CALL1:.*]] = call i32 @callee(i32* nonnull %a, i32 %v, i32 10)
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;CHECK-LABEL: TBB.split:
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;CHECK: %[[CALL2:.*]] = call i32 @callee(i32* %a, i32 %v, i32 %p)
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;CHECK-LABEL: Tail
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;CHECK: %[[MERGED:.*]] = phi i32 [ %[[CALL1]], %Header2.split ], [ %[[CALL2]], %TBB.split ]
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;CHECK: ret i32 %[[MERGED]]
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define i32 @test_ne_eq_ne(i32* %a, i32 %v, i32 %p) {
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Header:
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%tobool1 = icmp ne i32* %a, null
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br i1 %tobool1, label %Header2, label %TBB
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Header2:
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%tobool2 = icmp eq i32 %p, 10
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br i1 %tobool2, label %Tail, label %TBB
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TBB:
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%cmp = icmp ne i32 %v, 1
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br i1 %cmp, label %Tail, label %End
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Tail:
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%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
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ret i32 %r
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End:
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ret i32 %v
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}
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;CHECK-LABEL: @test_ne_ne
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;CHECK-LABEL: Header.split:
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;CHECK: %[[CALL1:.*]] = call i32 @callee(i32* nonnull %a, i32 %v, i32 1)
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;CHECK-LABEL: TBB.split:
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;CHECK: %[[CALL2:.*]] = call i32 @callee(i32* null, i32 %v, i32 2)
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;CHECK-LABEL: Tail
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;CHECK: %[[MERGED:.*]] = phi i32 [ %[[CALL1]], %Header.split ], [ %[[CALL2]], %TBB.split ]
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;CHECK: ret i32 %[[MERGED]]
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define i32 @test_ne_ne(i32* %a, i32 %v) {
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Header:
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%tobool1 = icmp ne i32* %a, null
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br i1 %tobool1, label %Tail, label %TBB
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TBB:
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%cmp = icmp ne i32 %v, 1
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br i1 %cmp, label %Tail, label %End
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Tail:
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%p = phi i32[1,%Header], [2, %TBB]
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%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
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ret i32 %r
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End:
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ret i32 %v
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}
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;CHECK-LABEL: @test_ne_ne_ne_constrain_same_pointer_arg
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;CHECK-LABEL: Header2.split:
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;CHECK: %[[CALL1:.*]] = call i32 @callee(i32* nonnull %a, i32 %v, i32 %p)
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;CHECK-LABEL: TBB.split:
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;CHECK: %[[CALL2:.*]] = call i32 @callee(i32* %a, i32 %v, i32 %p)
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;CHECK-LABEL: Tail
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;CHECK: %[[MERGED:.*]] = phi i32 [ %[[CALL1]], %Header2.split ], [ %[[CALL2]], %TBB.split ]
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;CHECK: ret i32 %[[MERGED]]
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define i32 @test_ne_ne_ne_constrain_same_pointer_arg(i32* %a, i32 %v, i32 %p, i32* %a2, i32* %a3) {
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Header:
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%tobool1 = icmp ne i32* %a, null
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br i1 %tobool1, label %Header2, label %TBB
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Header2:
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%tobool2 = icmp ne i32* %a, %a2
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br i1 %tobool2, label %Tail, label %TBB
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TBB:
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%cmp = icmp ne i32* %a, %a3
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br i1 %cmp, label %Tail, label %End
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Tail:
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%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
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ret i32 %r
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End:
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ret i32 %v
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}
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;CHECK-LABEL: @test_eq_eq_untaken
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;CHECK-LABEL: Header.split:
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;CHECK: %[[CALL1:.*]] = call i32 @callee(i32* nonnull %a, i32 %v, i32 1)
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;CHECK-LABEL: TBB.split:
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;CHECK: %[[CALL2:.*]] = call i32 @callee(i32* null, i32 1, i32 2)
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;CHECK-LABEL: Tail
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;CHECK: %[[MERGED:.*]] = phi i32 [ %[[CALL1]], %Header.split ], [ %[[CALL2]], %TBB.split ]
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;CHECK: ret i32 %[[MERGED]]
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define i32 @test_eq_eq_untaken(i32* %a, i32 %v) {
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Header:
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%tobool1 = icmp eq i32* %a, null
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br i1 %tobool1, label %TBB, label %Tail
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TBB:
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%cmp = icmp eq i32 %v, 1
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br i1 %cmp, label %Tail, label %End
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Tail:
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%p = phi i32[1,%Header], [2, %TBB]
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%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
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ret i32 %r
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End:
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ret i32 %v
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}
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;CHECK-LABEL: @test_eq_eq_eq_untaken
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;CHECK-LABEL: Header2.split:
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;CHECK: %[[CALL1:.*]] = call i32 @callee(i32* nonnull %a, i32 %v, i32 10)
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;CHECK-LABEL: TBB.split:
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;CHECK: %[[CALL2:.*]] = call i32 @callee(i32* %a, i32 1, i32 %p)
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;CHECK-LABEL: Tail
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;CHECK: %[[MERGED:.*]] = phi i32 [ %[[CALL1]], %Header2.split ], [ %[[CALL2]], %TBB.split ]
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;CHECK: ret i32 %[[MERGED]]
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define i32 @test_eq_eq_eq_untaken(i32* %a, i32 %v, i32 %p) {
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Header:
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%tobool1 = icmp eq i32* %a, null
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br i1 %tobool1, label %TBB, label %Header2
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Header2:
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%tobool2 = icmp eq i32 %p, 10
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br i1 %tobool2, label %Tail, label %TBB
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TBB:
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%cmp = icmp eq i32 %v, 1
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br i1 %cmp, label %Tail, label %End
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Tail:
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%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
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ret i32 %r
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End:
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ret i32 %v
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}
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||
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;CHECK-LABEL: @test_ne_eq_untaken
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;CHECK-LABEL: Header.split:
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;CHECK: %[[CALL1:.*]] = call i32 @callee(i32* null, i32 %v, i32 1)
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;CHECK-LABEL: TBB.split:
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;CHECK: %[[CALL2:.*]] = call i32 @callee(i32* nonnull %a, i32 1, i32 2)
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;CHECK-LABEL: Tail
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;CHECK: %[[MERGED:.*]] = phi i32 [ %[[CALL1]], %Header.split ], [ %[[CALL2]], %TBB.split ]
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;CHECK: ret i32 %[[MERGED]]
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define i32 @test_ne_eq_untaken(i32* %a, i32 %v) {
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Header:
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%tobool1 = icmp ne i32* %a, null
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br i1 %tobool1, label %TBB, label %Tail
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TBB:
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%cmp = icmp eq i32 %v, 1
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br i1 %cmp, label %Tail, label %End
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Tail:
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%p = phi i32[1,%Header], [2, %TBB]
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%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
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ret i32 %r
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||
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End:
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ret i32 %v
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||
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}
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||
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|
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||
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;CHECK-LABEL: @test_ne_eq_ne_untaken
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;CHECK-LABEL: Header2.split:
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;CHECK: %[[CALL1:.*]] = call i32 @callee(i32* null, i32 %v, i32 10)
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;CHECK-LABEL: TBB.split:
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;CHECK: %[[CALL2:.*]] = call i32 @callee(i32* %a, i32 %v, i32 %p)
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;CHECK-LABEL: Tail
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;CHECK: %[[MERGED:.*]] = phi i32 [ %[[CALL1]], %Header2.split ], [ %[[CALL2]], %TBB.split ]
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;CHECK: ret i32 %[[MERGED]]
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||
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define i32 @test_ne_eq_ne_untaken(i32* %a, i32 %v, i32 %p) {
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Header:
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%tobool1 = icmp ne i32* %a, null
|
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|
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br i1 %tobool1, label %TBB, label %Header2
|
||
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||
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Header2:
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%tobool2 = icmp eq i32 %p, 10
|
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br i1 %tobool2, label %Tail, label %TBB
|
||
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||
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TBB:
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%cmp = icmp ne i32 %v, 1
|
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br i1 %cmp, label %Tail, label %End
|
||
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||
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Tail:
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%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
|
||
|
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ret i32 %r
|
||
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|
||
|
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End:
|
||
|
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ret i32 %v
|
||
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}
|
||
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|
||
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;CHECK-LABEL: @test_ne_ne_untaken
|
||
|
|
;CHECK-LABEL: Header.split:
|
||
|
|
;CHECK: %[[CALL1:.*]] = call i32 @callee(i32* null, i32 %v, i32 1)
|
||
|
|
;CHECK-LABEL: TBB.split:
|
||
|
|
;CHECK: %[[CALL2:.*]] = call i32 @callee(i32* nonnull %a, i32 1, i32 2)
|
||
|
|
;CHECK-LABEL: Tail
|
||
|
|
;CHECK: %[[MERGED:.*]] = phi i32 [ %[[CALL1]], %Header.split ], [ %[[CALL2]], %TBB.split ]
|
||
|
|
;CHECK: ret i32 %[[MERGED]]
|
||
|
|
define i32 @test_ne_ne_untaken(i32* %a, i32 %v) {
|
||
|
|
Header:
|
||
|
|
%tobool1 = icmp ne i32* %a, null
|
||
|
|
br i1 %tobool1, label %TBB, label %Tail
|
||
|
|
|
||
|
|
TBB:
|
||
|
|
%cmp = icmp ne i32 %v, 1
|
||
|
|
br i1 %cmp, label %End, label %Tail
|
||
|
|
|
||
|
|
Tail:
|
||
|
|
%p = phi i32[1,%Header], [2, %TBB]
|
||
|
|
%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
|
||
|
|
ret i32 %r
|
||
|
|
|
||
|
|
End:
|
||
|
|
ret i32 %v
|
||
|
|
}
|
||
|
|
|
||
|
|
;CHECK-LABEL: @test_nonconst_const_phi
|
||
|
|
;CHECK-LABEL: Header.split:
|
||
|
|
;CHECK: %[[CALL1:.*]] = call i32 @callee(i32* %a, i32 %v, i32 1)
|
||
|
|
;CHECK-LABEL: TBB.split:
|
||
|
|
;CHECK: %[[CALL2:.*]] = call i32 @callee(i32* %a, i32 1, i32 2)
|
||
|
|
;CHECK-LABEL: Tail
|
||
|
|
;CHECK: %[[MERGED:.*]] = phi i32 [ %[[CALL1]], %Header.split ], [ %[[CALL2]], %TBB.split ]
|
||
|
|
;CHECK: ret i32 %[[MERGED]]
|
||
|
|
define i32 @test_nonconst_const_phi(i32* %a, i32* %b, i32 %v) {
|
||
|
|
Header:
|
||
|
|
%tobool1 = icmp eq i32* %a, %b
|
||
|
|
br i1 %tobool1, label %Tail, label %TBB
|
||
|
|
|
||
|
|
TBB:
|
||
|
|
%cmp = icmp eq i32 %v, 1
|
||
|
|
br i1 %cmp, label %Tail, label %End
|
||
|
|
|
||
|
|
Tail:
|
||
|
|
%p = phi i32[1,%Header], [2, %TBB]
|
||
|
|
%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
|
||
|
|
ret i32 %r
|
||
|
|
|
||
|
|
End:
|
||
|
|
ret i32 %v
|
||
|
|
}
|
||
|
|
|
||
|
|
;CHECK-LABEL: @test_nonconst_nonconst_phi
|
||
|
|
;CHECK-LABEL: Header.split:
|
||
|
|
;CHECK: %[[CALL1:.*]] = call i32 @callee(i32* %a, i32 %v, i32 1)
|
||
|
|
;CHECK-LABEL: TBB.split:
|
||
|
|
;CHECK: %[[CALL2:.*]] = call i32 @callee(i32* %a, i32 %v, i32 2)
|
||
|
|
;CHECK-LABEL: Tail
|
||
|
|
;CHECK: %[[MERGED:.*]] = phi i32 [ %[[CALL2]], %TBB.split ], [ %[[CALL1]], %Header.split ]
|
||
|
|
;CHECK: ret i32 %[[MERGED]]
|
||
|
|
define i32 @test_nonconst_nonconst_phi(i32* %a, i32* %b, i32 %v, i32 %v2) {
|
||
|
|
Header:
|
||
|
|
%tobool1 = icmp eq i32* %a, %b
|
||
|
|
br i1 %tobool1, label %Tail, label %TBB
|
||
|
|
|
||
|
|
TBB:
|
||
|
|
%cmp = icmp eq i32 %v, %v2
|
||
|
|
br i1 %cmp, label %Tail, label %End
|
||
|
|
|
||
|
|
Tail:
|
||
|
|
%p = phi i32[1,%Header], [2, %TBB]
|
||
|
|
%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
|
||
|
|
ret i32 %r
|
||
|
|
|
||
|
|
End:
|
||
|
|
ret i32 %v
|
||
|
|
}
|
||
|
|
|
||
|
|
;CHECK-LABEL: @test_cfg_no_or_phi
|
||
|
|
;CHECK-LABEL: TBB0.split
|
||
|
|
;CHECK: %[[CALL1:.*]] = call i32 @callee(i32* %a, i32 %v, i32 1)
|
||
|
|
;CHECK-LABEL: TBB1.split:
|
||
|
|
;CHECK: %[[CALL2:.*]] = call i32 @callee(i32* %a, i32 %v, i32 2)
|
||
|
|
;CHECK-LABEL: Tail
|
||
|
|
;CHECK: %[[MERGED:.*]] = phi i32 [ %[[CALL2]], %TBB1.split ], [ %[[CALL1]], %TBB0.split ]
|
||
|
|
;CHECK: ret i32 %[[MERGED]]
|
||
|
|
define i32 @test_cfg_no_or_phi(i32* %a, i32 %v) {
|
||
|
|
entry:
|
||
|
|
br i1 undef, label %TBB0, label %TBB1
|
||
|
|
TBB0:
|
||
|
|
br i1 undef, label %Tail, label %End
|
||
|
|
TBB1:
|
||
|
|
br i1 undef, label %Tail, label %End
|
||
|
|
Tail:
|
||
|
|
%p = phi i32[1,%TBB0], [2, %TBB1]
|
||
|
|
%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
|
||
|
|
ret i32 %r
|
||
|
|
End:
|
||
|
|
ret i32 %v
|
||
|
|
}
|
||
|
|
|
||
|
|
;CHECK-LABEL: @test_nonconst_nonconst_phi_noncost
|
||
|
|
;CHECK-NOT: Header.split:
|
||
|
|
;CHECK-NOT: TBB.split:
|
||
|
|
;CHECK-LABEL: Tail:
|
||
|
|
;CHECK: %r = call i32 @callee(i32* %a, i32 %v, i32 %p)
|
||
|
|
;CHECK: ret i32 %r
|
||
|
|
define i32 @test_nonconst_nonconst_phi_noncost(i32* %a, i32* %b, i32 %v, i32 %v2) {
|
||
|
|
Header:
|
||
|
|
%tobool1 = icmp eq i32* %a, %b
|
||
|
|
br i1 %tobool1, label %Tail, label %TBB
|
||
|
|
|
||
|
|
TBB:
|
||
|
|
%cmp = icmp eq i32 %v, %v2
|
||
|
|
br i1 %cmp, label %Tail, label %End
|
||
|
|
|
||
|
|
Tail:
|
||
|
|
%p = phi i32[%v,%Header], [%v2, %TBB]
|
||
|
|
%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
|
||
|
|
ret i32 %r
|
||
|
|
|
||
|
|
End:
|
||
|
|
ret i32 %v
|
||
|
|
}
|
||
|
|
|
||
|
|
;CHECK-LABEL: @test_3preds_constphi
|
||
|
|
;CHECK-NOT: Header.split:
|
||
|
|
;CHECK-NOT: TBB.split:
|
||
|
|
;CHECK-LABEL: Tail:
|
||
|
|
;CHECK: %r = call i32 @callee(i32* %a, i32 %v, i32 %p)
|
||
|
|
;CHECK: ret i32 %r
|
||
|
|
define i32 @test_3preds_constphi(i32* %a, i32 %v, i1 %c1, i1 %c2, i1 %c3) {
|
||
|
|
Header:
|
||
|
|
br i1 %c1, label %Tail, label %TBB1
|
||
|
|
|
||
|
|
TBB1:
|
||
|
|
br i1 %c2, label %Tail, label %TBB2
|
||
|
|
|
||
|
|
TBB2:
|
||
|
|
br i1 %c3, label %Tail, label %End
|
||
|
|
|
||
|
|
Tail:
|
||
|
|
%p = phi i32[1,%Header], [2, %TBB1], [3, %TBB2]
|
||
|
|
%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
|
||
|
|
ret i32 %r
|
||
|
|
|
||
|
|
End:
|
||
|
|
ret i32 %v
|
||
|
|
}
|
||
|
|
|
||
|
|
;CHECK-LABEL: @test_indirectbr_phi
|
||
|
|
;CHECK-NOT: Header.split:
|
||
|
|
;CHECK-NOT: TBB.split:
|
||
|
|
;CHECK-LABEL: Tail:
|
||
|
|
;CHECK: %r = call i32 @callee(i32* %a, i32 %v, i32 %p)
|
||
|
|
;CHECK: ret i32 %r
|
||
|
|
define i32 @test_indirectbr_phi(i8* %address, i32* %a, i32* %b, i32 %v) {
|
||
|
|
Header:
|
||
|
|
%indirect.goto.dest = select i1 undef, i8* blockaddress(@test_indirectbr_phi, %End), i8* %address
|
||
|
|
indirectbr i8* %indirect.goto.dest, [label %TBB, label %Tail]
|
||
|
|
|
||
|
|
TBB:
|
||
|
|
%indirect.goto.dest2 = select i1 undef, i8* blockaddress(@test_indirectbr_phi, %End), i8* %address
|
||
|
|
indirectbr i8* %indirect.goto.dest2, [label %Tail, label %End]
|
||
|
|
|
||
|
|
Tail:
|
||
|
|
%p = phi i32[1,%Header], [2, %TBB]
|
||
|
|
%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
|
||
|
|
ret i32 %r
|
||
|
|
|
||
|
|
End:
|
||
|
|
ret i32 %v
|
||
|
|
}
|
||
|
|
|
||
|
|
;CHECK-LABEL: @test_cond_no_effect
|
||
|
|
;CHECK-NOT: Header.split:
|
||
|
|
;CHECK-NOT: TBB.split:
|
||
|
|
;CHECK-LABEL: Tail:
|
||
|
|
;CHECK: %r = call i32 @callee(i32* %a, i32 %v, i32 0)
|
||
|
|
;CHECK: ret i32 %r
|
||
|
|
define i32 @test_cond_no_effect(i32* %a, i32 %v) {
|
||
|
|
Entry:
|
||
|
|
%tobool1 = icmp eq i32* %a, null
|
||
|
|
br i1 %tobool1, label %Header, label %End
|
||
|
|
|
||
|
|
Header:
|
||
|
|
br i1 undef, label %Tail, label %TBB
|
||
|
|
|
||
|
|
TBB:
|
||
|
|
br i1 undef, label %Tail, label %End
|
||
|
|
|
||
|
|
Tail:
|
||
|
|
%r = call i32 @callee(i32* %a, i32 %v, i32 0)
|
||
|
|
ret i32 %r
|
||
|
|
|
||
|
|
End:
|
||
|
|
ret i32 %v
|
||
|
|
}
|
||
|
|
|
||
|
|
;CHECK-LABEL: @test_unreachable
|
||
|
|
;CHECK-LABEL: Header.split:
|
||
|
|
;CHECK: %[[CALL1:.*]] = call i32 @callee(i32* %a, i32 %v, i32 10)
|
||
|
|
;CHECK-LABEL: TBB.split:
|
||
|
|
;CHECK: %[[CALL2:.*]] = call i32 @callee(i32* %a, i32 1, i32 %p)
|
||
|
|
;CHECK-LABEL: Tail
|
||
|
|
;CHECK: %[[MERGED:.*]] = phi i32 [ %[[CALL1]], %Header.split ], [ %[[CALL2]], %TBB.split ]
|
||
|
|
;CHECK: ret i32 %[[MERGED]]
|
||
|
|
define i32 @test_unreachable(i32* %a, i32 %v, i32 %p) {
|
||
|
|
Entry:
|
||
|
|
br label %End
|
||
|
|
Header:
|
||
|
|
%tobool2 = icmp eq i32 %p, 10
|
||
|
|
br i1 %tobool2, label %Tail, label %TBB
|
||
|
|
TBB:
|
||
|
|
%cmp = icmp eq i32 %v, 1
|
||
|
|
br i1 %cmp, label %Tail, label %Header
|
||
|
|
Tail:
|
||
|
|
%r = call i32 @callee(i32* %a, i32 %v, i32 %p)
|
||
|
|
ret i32 %r
|
||
|
|
End:
|
||
|
|
ret i32 %v
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @callee(i32* %a, i32 %v, i32 %p) {
|
||
|
|
entry:
|
||
|
|
%c = icmp ne i32* %a, null
|
||
|
|
br i1 %c, label %BB1, label %BB2
|
||
|
|
|
||
|
|
BB1:
|
||
|
|
call void @dummy(i32* %a, i32 %p)
|
||
|
|
br label %End
|
||
|
|
|
||
|
|
BB2:
|
||
|
|
call void @dummy2(i32 %v, i32 %p)
|
||
|
|
br label %End
|
||
|
|
|
||
|
|
End:
|
||
|
|
ret i32 %p
|
||
|
|
}
|
||
|
|
|
||
|
|
declare void @dummy(i32*, i32)
|
||
|
|
declare void @dummy2(i32, i32)
|
||
|
|
|
||
|
|
; Make sure we remove the non-nullness on constant paramater.
|
||
|
|
;
|
||
|
|
;CHECK-LABEL: @caller2
|
||
|
|
;CHECK-LABEL: Top1.split:
|
||
|
|
;CHECK: call i32 @callee(i32* inttoptr (i64 4643 to i32*)
|
||
|
|
define void @caller2(i32 %c, i32* %a_elt, i32* %b_elt) {
|
||
|
|
entry:
|
||
|
|
br label %Top0
|
||
|
|
|
||
|
|
Top0:
|
||
|
|
%tobool1 = icmp eq i32* %a_elt, inttoptr (i64 4643 to i32*)
|
||
|
|
br i1 %tobool1, label %Top1, label %NextCond
|
||
|
|
|
||
|
|
Top1:
|
||
|
|
%tobool2 = icmp ne i32* %a_elt, null
|
||
|
|
br i1 %tobool2, label %CallSiteBB, label %NextCond
|
||
|
|
|
||
|
|
NextCond:
|
||
|
|
%cmp = icmp ne i32* %b_elt, null
|
||
|
|
br i1 %cmp, label %CallSiteBB, label %End
|
||
|
|
|
||
|
|
CallSiteBB:
|
||
|
|
call i32 @callee(i32* %a_elt, i32 %c, i32 %c)
|
||
|
|
br label %End
|
||
|
|
|
||
|
|
End:
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; CHECK-LABEL: i32 @test_multiple_phis(
|
||
|
|
; CHECK: Header.split:
|
||
|
|
; CHECK-NEXT: %r2 = call i32 @callee(i32* null, i32 1, i32 5)
|
||
|
|
; CHECK-NEXT: br label %Tail
|
||
|
|
|
||
|
|
; CHECK: TBB.split:
|
||
|
|
; CHECK-NEXT: %r1 = call i32 @callee(i32* null, i32 2, i32 10)
|
||
|
|
; CHECK-NEXT: br label %Tail
|
||
|
|
|
||
|
|
; CHECK: Tail:
|
||
|
|
; CHECK-NEXT: %phi.call = phi i32 [ %r1, %TBB.split ], [ %r2, %Header.split ]
|
||
|
|
; CHECK-NEXT: %p.0 = phi i32 [ 0, %Header.split ], [ 99, %TBB.split ]
|
||
|
|
; CHECK-NEXT: %res = add i32 %phi.call, %p.0
|
||
|
|
; CHECK-NEXT: ret i32 %phi.call
|
||
|
|
;
|
||
|
|
define i32 @test_multiple_phis(i1 %c.1) {
|
||
|
|
Header:
|
||
|
|
br i1 %c.1, label %Tail, label %TBB
|
||
|
|
|
||
|
|
TBB:
|
||
|
|
br label %Tail
|
||
|
|
|
||
|
|
Tail:
|
||
|
|
%p.0 = phi i32 [0, %Header], [99, %TBB]
|
||
|
|
%p.1 = phi i32[1, %Header], [2, %TBB]
|
||
|
|
%p.2 = phi i32 [5, %Header], [10, %TBB]
|
||
|
|
%r = call i32 @callee(i32* null, i32 %p.1, i32 %p.2)
|
||
|
|
%res = add i32 %r, %p.0
|
||
|
|
ret i32 %r
|
||
|
|
|
||
|
|
End:
|
||
|
|
ret i32 10
|
||
|
|
}
|