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TheRock/compiler/amd-llvm/llvm/test/CodeGen/X86/bool-zext.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

63 lines
1.7 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s -check-prefix=X32
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s -check-prefix=X64
; It's not necessary to zero-extend the arg because it is specified 'zeroext'.
define void @bar1(i1 zeroext %v1) nounwind ssp {
; X32-LABEL: bar1:
; X32: # %bb.0:
; X32-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X32-NEXT: pushl %eax
; X32-NEXT: calll foo1
; X32-NEXT: addl $4, %esp
; X32-NEXT: retl
;
; X64-LABEL: bar1:
; X64: # %bb.0:
; X64-NEXT: xorl %eax, %eax
; X64-NEXT: jmp foo1 # TAILCALL
%conv = zext i1 %v1 to i32
%call = tail call i32 (...) @foo1(i32 %conv) nounwind
ret void
}
; Check that on x86-64 the arguments are simply forwarded.
define void @bar2(i8 zeroext %v1) nounwind ssp {
; X32-LABEL: bar2:
; X32: # %bb.0:
; X32-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X32-NEXT: pushl %eax
; X32-NEXT: calll foo1
; X32-NEXT: addl $4, %esp
; X32-NEXT: retl
;
; X64-LABEL: bar2:
; X64: # %bb.0:
; X64-NEXT: xorl %eax, %eax
; X64-NEXT: jmp foo1 # TAILCALL
%conv = zext i8 %v1 to i32
%call = tail call i32 (...) @foo1(i32 %conv) nounwind
ret void
}
; Check that i1 return values are not zero-extended.
define zeroext i1 @bar3() nounwind ssp {
; X32-LABEL: bar3:
; X32: # %bb.0:
; X32-NEXT: calll foo2@PLT
; X32-NEXT: retl
;
; X64-LABEL: bar3:
; X64: # %bb.0:
; X64-NEXT: pushq %rax
; X64-NEXT: callq foo2@PLT
; X64-NEXT: popq %rcx
; X64-NEXT: retq
%call = call i1 @foo2() nounwind
ret i1 %call
}
declare dso_local i32 @foo1(...)
declare zeroext i1 @foo2()