44 lines
1.4 KiB
LLVM
44 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i686-- | FileCheck %s
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@X = weak global i16 0 ; <i16*> [#uses=1]
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@Y = weak global i16 0 ; <i16*> [#uses=1]
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define void @foo(i32 %N) nounwind {
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; CHECK-LABEL: foo:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
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; CHECK-NEXT: testl %eax, %eax
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; CHECK-NEXT: jle .LBB0_3
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; CHECK-NEXT: # %bb.1: # %bb.preheader
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; CHECK-NEXT: xorl %ecx, %ecx
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; CHECK-NEXT: xorl %edx, %edx
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; CHECK-NEXT: .p2align 4, 0x90
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; CHECK-NEXT: .LBB0_2: # %bb
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; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: movw %dx, X
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; CHECK-NEXT: movw %cx, Y
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; CHECK-NEXT: incl %edx
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; CHECK-NEXT: addl $4, %ecx
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; CHECK-NEXT: cmpl %edx, %eax
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; CHECK-NEXT: jne .LBB0_2
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; CHECK-NEXT: .LBB0_3: # %return
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; CHECK-NEXT: retl
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entry:
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%tmp1019 = icmp sgt i32 %N, 0 ; <i1> [#uses=1]
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br i1 %tmp1019, label %bb, label %return
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bb: ; preds = %bb, %entry
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%i.014.0 = phi i32 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=2]
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%tmp1 = trunc i32 %i.014.0 to i16 ; <i16> [#uses=2]
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store volatile i16 %tmp1, i16* @X, align 2
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%tmp34 = shl i16 %tmp1, 2 ; <i16> [#uses=1]
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store volatile i16 %tmp34, i16* @Y, align 2
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%indvar.next = add i32 %i.014.0, 1 ; <i32> [#uses=2]
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%exitcond = icmp eq i32 %indvar.next, %N ; <i1> [#uses=1]
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br i1 %exitcond, label %return, label %bb
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return: ; preds = %bb, %entry
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ret void
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}
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