177 lines
4.9 KiB
LLVM
177 lines
4.9 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 -mtriple=i686-unknown | FileCheck %s --check-prefix=X86
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; RUN: llc < %s -mtriple=x86_64-unknown | FileCheck %s --check-prefix=X64
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; rdar://7367229
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define i32 @t(i32 %a, i32 %b) nounwind ssp {
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; X86-LABEL: t:
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; X86: # %bb.0: # %entry
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; X86-NEXT: movb {{[0-9]+}}(%esp), %al
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; X86-NEXT: xorb {{[0-9]+}}(%esp), %al
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; X86-NEXT: testb $64, %al
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; X86-NEXT: je .LBB0_1
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; X86-NEXT: # %bb.2: # %bb1
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; X86-NEXT: jmp bar # TAILCALL
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; X86-NEXT: .LBB0_1: # %bb
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; X86-NEXT: jmp foo # TAILCALL
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;
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; X64-LABEL: t:
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; X64: # %bb.0: # %entry
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; X64-NEXT: xorl %esi, %edi
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; X64-NEXT: xorl %eax, %eax
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; X64-NEXT: testl $16384, %edi # imm = 0x4000
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; X64-NEXT: je .LBB0_1
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; X64-NEXT: # %bb.2: # %bb1
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; X64-NEXT: jmp bar # TAILCALL
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; X64-NEXT: .LBB0_1: # %bb
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; X64-NEXT: jmp foo # TAILCALL
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entry:
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%0 = and i32 %a, 16384
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%1 = icmp ne i32 %0, 0
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%2 = and i32 %b, 16384
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%3 = icmp ne i32 %2, 0
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%4 = xor i1 %1, %3
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br i1 %4, label %bb1, label %bb
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bb: ; preds = %entry
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%5 = tail call i32 (...) @foo() nounwind ; <i32> [#uses=1]
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ret i32 %5
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bb1: ; preds = %entry
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%6 = tail call i32 (...) @bar() nounwind ; <i32> [#uses=1]
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ret i32 %6
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}
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declare dso_local i32 @foo(...)
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declare dso_local i32 @bar(...)
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define i32 @t2(i32 %x, i32 %y) nounwind ssp {
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; X86-LABEL: t2:
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; X86: # %bb.0: # %entry
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; X86-NEXT: cmpl $0, {{[0-9]+}}(%esp)
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; X86-NEXT: sete %al
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; X86-NEXT: cmpl $0, {{[0-9]+}}(%esp)
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; X86-NEXT: sete %cl
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; X86-NEXT: cmpb %al, %cl
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; X86-NEXT: je .LBB1_1
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; X86-NEXT: # %bb.2: # %bb
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; X86-NEXT: jmp foo # TAILCALL
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; X86-NEXT: .LBB1_1: # %return
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; X86-NEXT: retl
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;
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; X64-LABEL: t2:
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; X64: # %bb.0: # %entry
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; X64-NEXT: testl %edi, %edi
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; X64-NEXT: sete %al
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; X64-NEXT: testl %esi, %esi
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; X64-NEXT: sete %cl
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; X64-NEXT: cmpb %al, %cl
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; X64-NEXT: je .LBB1_1
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; X64-NEXT: # %bb.2: # %bb
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; X64-NEXT: xorl %eax, %eax
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; X64-NEXT: jmp foo # TAILCALL
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; X64-NEXT: .LBB1_1: # %return
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; X64-NEXT: retq
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entry:
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%0 = icmp eq i32 %x, 0 ; <i1> [#uses=1]
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%1 = icmp eq i32 %y, 0 ; <i1> [#uses=1]
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%2 = xor i1 %1, %0 ; <i1> [#uses=1]
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br i1 %2, label %bb, label %return
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bb: ; preds = %entry
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%3 = tail call i32 (...) @foo() nounwind ; <i32> [#uses=0]
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ret i32 undef
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return: ; preds = %entry
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ret i32 undef
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}
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; PR45703
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; https://bugs.llvm.org/show_bug.cgi?id=45703
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define i1 @xor_not_bools(i1 zeroext %x, i1 zeroext %y) nounwind {
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; X86-LABEL: xor_not_bools:
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; X86: # %bb.0:
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; X86-NEXT: movb {{[0-9]+}}(%esp), %al
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; X86-NEXT: xorb {{[0-9]+}}(%esp), %al
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; X86-NEXT: xorb $1, %al
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; X86-NEXT: retl
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;
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; X64-LABEL: xor_not_bools:
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; X64: # %bb.0:
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; X64-NEXT: movl %edi, %eax
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; X64-NEXT: xorl %esi, %eax
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; X64-NEXT: xorb $1, %al
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; X64-NEXT: # kill: def $al killed $al killed $eax
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; X64-NEXT: retq
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%xor = xor i1 %x, %y
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%not = xor i1 %xor, true
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ret i1 %not
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}
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; This is probably not canonical IR; just testing another possible pattern.
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define zeroext i1 @xor_not_cmps(i32 %x, i32 %y) nounwind {
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; X86-LABEL: xor_not_cmps:
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; X86: # %bb.0:
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; X86-NEXT: cmpl $42, {{[0-9]+}}(%esp)
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; X86-NEXT: setne %cl
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; X86-NEXT: cmpl $235, {{[0-9]+}}(%esp)
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; X86-NEXT: sete %al
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; X86-NEXT: xorb %cl, %al
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; X86-NEXT: xorb $1, %al
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; X86-NEXT: retl
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;
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; X64-LABEL: xor_not_cmps:
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; X64: # %bb.0:
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; X64-NEXT: cmpl $42, %edi
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; X64-NEXT: setne %cl
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; X64-NEXT: cmpl $235, %esi
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; X64-NEXT: sete %al
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; X64-NEXT: xorb %cl, %al
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; X64-NEXT: xorb $1, %al
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; X64-NEXT: retq
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%cmpx = icmp ne i32 %x, 42
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%cmpy = icmp eq i32 %y, 235
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%xor = xor i1 %cmpx, %cmpy
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%not = xor i1 %xor, 1
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ret i1 %not
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}
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define zeroext i1 @xor_not_cmps_extra_use(i32 %x, i32 %y, i32* %p) nounwind {
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; X86-LABEL: xor_not_cmps_extra_use:
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; X86: # %bb.0:
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: cmpl $42, {{[0-9]+}}(%esp)
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; X86-NEXT: setne %dl
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; X86-NEXT: cmpl $235, {{[0-9]+}}(%esp)
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; X86-NEXT: sete %al
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; X86-NEXT: xorb %dl, %al
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; X86-NEXT: movzbl %al, %edx
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; X86-NEXT: movl %edx, (%ecx)
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; X86-NEXT: xorb $1, %al
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; X86-NEXT: retl
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;
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; X64-LABEL: xor_not_cmps_extra_use:
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; X64: # %bb.0:
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; X64-NEXT: cmpl $42, %edi
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; X64-NEXT: setne %al
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; X64-NEXT: cmpl $235, %esi
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; X64-NEXT: sete %cl
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; X64-NEXT: xorb %al, %cl
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; X64-NEXT: movzbl %cl, %eax
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; X64-NEXT: movl %eax, (%rdx)
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; X64-NEXT: xorb $1, %al
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; X64-NEXT: # kill: def $al killed $al killed $eax
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; X64-NEXT: retq
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%cmpx = icmp ne i32 %x, 42
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%cmpy = icmp eq i32 %y, 235
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%xor = xor i1 %cmpx, %cmpy
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%z = zext i1 %xor to i32
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store i32 %z, i32* %p
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%not = xor i1 %xor, 1
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ret i1 %not
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}
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