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bc8c141758
Summary: Re-lands r328386 and r328443, reverting r328482. Incorporates fixes from @mstorsjo in D44876 (thanks!) so that small parameters in i8 and i16 do not end up in the SysV register parameters (EDI, ESI, etc). I added tests for how we receive small parameters, since that is the important part. It's always safe to store more bytes than will be read, but the assumptions you make when loading them are what really matter. I also tested this by self-hosting clang and it passed tests on win64. Reviewers: mstorsjo, hans Subscribers: hiraditya, mstorsjo, llvm-commits Differential Revision: https://reviews.llvm.org/D44900 llvm-svn: 328570
24 lines
522 B
LLVM
24 lines
522 B
LLVM
; RUN: llc < %s -mtriple=x86_64-windows-msvc | FileCheck %s --check-prefix=CHECK
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; RUN: llc < %s -mtriple=x86_64-windows-gnu | FileCheck %s --check-prefix=CHECK
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define i32 @pass_bool(i1 zeroext %b) {
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entry:
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%cond = select i1 %b, i32 66, i32 0
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ret i32 %cond
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}
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; CHECK-LABEL: pass_bool:
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; CHECK-DAG: testb %cl, %cl
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; CHECK-DAG: movl $66,
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; CHECK: cmovel {{.*}}, %eax
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; CHECK: retq
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define zeroext i1 @ret_true() {
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entry:
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ret i1 true
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}
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; CHECK-LABEL: ret_true:
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; CHECK: movb $1, %al
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; CHECK: retq
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