48 lines
1.3 KiB
LLVM
48 lines
1.3 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s | FileCheck %s
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; RUN: llc -relocation-model=pic < %s | FileCheck %s --check-prefix=PIC
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@foo = external global i8, align 1, !absolute_symbol !0
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define void @bar(i8* %x) {
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; CHECK-LABEL: bar:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: testb $foo, (%rdi)
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; CHECK-NEXT: je .LBB0_1
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; CHECK-NEXT: # %bb.2: # %if.then
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: jmp xf@PLT # TAILCALL
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; CHECK-NEXT: .LBB0_1: # %if.end
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; CHECK-NEXT: retq
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;
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; PIC-LABEL: bar:
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; PIC: # %bb.0: # %entry
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; PIC-NEXT: testb $foo, (%rdi)
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; PIC-NEXT: je .LBB0_1
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; PIC-NEXT: # %bb.2: # %if.then
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; PIC-NEXT: xorl %eax, %eax
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; PIC-NEXT: jmp xf@PLT # TAILCALL
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; PIC-NEXT: .LBB0_1: # %if.end
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; PIC-NEXT: retq
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entry:
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%0 = load i8, i8* %x, align 1
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%conv = sext i8 %0 to i32
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%and = and i32 %conv, sext (i8 ptrtoint (i8* @foo to i8) to i32)
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%tobool = icmp eq i32 %and, 0
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br i1 %tobool, label %if.end, label %if.then
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if.then: ; preds = %entry
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tail call void (...) @xf()
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br label %if.end
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if.end: ; preds = %entry, %if.then
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ret void
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}
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declare void @xf(...)
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!0 = !{i32 0, i32 256}
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