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llvm-mirror/test/CodeGen/X86/sext-i1.ll
Wang, Pengfei c275334e12 [CodeGen][X86] Remove unused trivial check-prefixes from all CodeGen/X86 directory.
I had manually removed unused prefixes from CodeGen/X86 directory for more than 100 tests.
I checked the change history for each of them at the beginning, and then I mainly focused on the format since I found all of the unused prefixes were result from either insensible copy or residuum after functional update.
I think it's OK to remove the remaining X86 tests by script now. I wrote a rough script which works for me in most tests. I put it in llvm/utils temporarily for review and hope it may help other components owners.
The tests in this patch are all generated by the tool and checked by update tool for the autogenerated tests. I skimmed them and checked about 30 tests and didn't find any unexpected changes.

Reviewed By: mtrofin, MaskRay

Differential Revision: https://reviews.llvm.org/D91496
2020-11-16 09:45:55 +08:00

194 lines
4.6 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i386-unknown-unknown -disable-cgp-branch-opts | FileCheck %s --check-prefix=X32
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -disable-cgp-branch-opts | FileCheck %s --check-prefix=X64
; rdar://7573216
; PR6146
define i32 @t1(i32 %x) nounwind readnone ssp {
; X32-LABEL: t1:
; X32: # %bb.0:
; X32-NEXT: cmpl $1, {{[0-9]+}}(%esp)
; X32-NEXT: sbbl %eax, %eax
; X32-NEXT: retl
;
; X64-LABEL: t1:
; X64: # %bb.0:
; X64-NEXT: cmpl $1, %edi
; X64-NEXT: sbbl %eax, %eax
; X64-NEXT: retq
%t0 = icmp eq i32 %x, 0
%if = select i1 %t0, i32 -1, i32 0
ret i32 %if
}
define i32 @t2(i32 %x) nounwind readnone ssp {
; X32-LABEL: t2:
; X32: # %bb.0:
; X32-NEXT: cmpl $1, {{[0-9]+}}(%esp)
; X32-NEXT: sbbl %eax, %eax
; X32-NEXT: retl
;
; X64-LABEL: t2:
; X64: # %bb.0:
; X64-NEXT: cmpl $1, %edi
; X64-NEXT: sbbl %eax, %eax
; X64-NEXT: retq
%t0 = icmp eq i32 %x, 0
%if = sext i1 %t0 to i32
ret i32 %if
}
define i32 @t3(i32 %x, i64 %y) nounwind readonly {
; X32-LABEL: t3:
; X32: # %bb.0: # %entry
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: cmpl $1, {{[0-9]+}}(%esp)
; X32-NEXT: sbbl %ecx, %ecx
; X32-NEXT: cmpl %ecx, {{[0-9]+}}(%esp)
; X32-NEXT: sbbl %ecx, %eax
; X32-NEXT: xorl %eax, %eax
; X32-NEXT: retl
;
; X64-LABEL: t3:
; X64: # %bb.0: # %entry
; X64-NEXT: xorl %eax, %eax
; X64-NEXT: testl %edi, %edi
; X64-NEXT: sete %al
; X64-NEXT: negq %rax
; X64-NEXT: cmpq %rax, %rsi
; X64-NEXT: xorl %eax, %eax
; X64-NEXT: retq
entry:
%not.tobool = icmp eq i32 %x, 0
%cond = sext i1 %not.tobool to i32
%conv = sext i1 %not.tobool to i64
%add13 = add i64 0, %conv
%cmp = icmp ult i64 %y, %add13
br i1 %cmp, label %if.then, label %if.end
if.then:
br label %if.end
if.end:
%xor27 = xor i32 undef, %cond
ret i32 0
}
define i32 @t4(i64 %x) nounwind readnone ssp {
; X32-LABEL: t4:
; X32: # %bb.0:
; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X32-NEXT: xorl %eax, %eax
; X32-NEXT: orl {{[0-9]+}}(%esp), %ecx
; X32-NEXT: sete %al
; X32-NEXT: negl %eax
; X32-NEXT: retl
;
; X64-LABEL: t4:
; X64: # %bb.0:
; X64-NEXT: cmpq $1, %rdi
; X64-NEXT: sbbl %eax, %eax
; X64-NEXT: retq
%t0 = icmp eq i64 %x, 0
%t1 = sext i1 %t0 to i32
ret i32 %t1
}
define i64 @t5(i32 %x) nounwind readnone ssp {
; X32-LABEL: t5:
; X32: # %bb.0:
; X32-NEXT: cmpl $1, {{[0-9]+}}(%esp)
; X32-NEXT: sbbl %eax, %eax
; X32-NEXT: movl %eax, %edx
; X32-NEXT: retl
;
; X64-LABEL: t5:
; X64: # %bb.0:
; X64-NEXT: cmpl $1, %edi
; X64-NEXT: sbbq %rax, %rax
; X64-NEXT: retq
%t0 = icmp eq i32 %x, 0
%t1 = sext i1 %t0 to i64
ret i64 %t1
}
; sext (xor Bool, -1) --> sub (zext Bool), 1
define i32 @select_0_or_1s(i1 %cond) {
; X32-LABEL: select_0_or_1s:
; X32: # %bb.0:
; X32-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X32-NEXT: andl $1, %eax
; X32-NEXT: decl %eax
; X32-NEXT: retl
;
; X64-LABEL: select_0_or_1s:
; X64: # %bb.0:
; X64-NEXT: # kill: def $edi killed $edi def $rdi
; X64-NEXT: andl $1, %edi
; X64-NEXT: leal -1(%rdi), %eax
; X64-NEXT: retq
%not = xor i1 %cond, 1
%sext = sext i1 %not to i32
ret i32 %sext
}
; sext (xor Bool, -1) --> sub (zext Bool), 1
define i32 @select_0_or_1s_zeroext(i1 zeroext %cond) {
; X32-LABEL: select_0_or_1s_zeroext:
; X32: # %bb.0:
; X32-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X32-NEXT: decl %eax
; X32-NEXT: retl
;
; X64-LABEL: select_0_or_1s_zeroext:
; X64: # %bb.0:
; X64-NEXT: # kill: def $edi killed $edi def $rdi
; X64-NEXT: leal -1(%rdi), %eax
; X64-NEXT: retq
%not = xor i1 %cond, 1
%sext = sext i1 %not to i32
ret i32 %sext
}
; sext (xor Bool, -1) --> sub (zext Bool), 1
define i32 @select_0_or_1s_signext(i1 signext %cond) {
; X32-LABEL: select_0_or_1s_signext:
; X32: # %bb.0:
; X32-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X32-NEXT: andl $1, %eax
; X32-NEXT: decl %eax
; X32-NEXT: retl
;
; X64-LABEL: select_0_or_1s_signext:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: notl %eax
; X64-NEXT: retq
%not = xor i1 %cond, 1
%sext = sext i1 %not to i32
ret i32 %sext
}
define i32 @zext_decrement_sext(i8 %x) {
; X32-LABEL: zext_decrement_sext:
; X32: # %bb.0:
; X32-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X32-NEXT: decl %eax
; X32-NEXT: retl
;
; X64-LABEL: zext_decrement_sext:
; X64: # %bb.0:
; X64-NEXT: movzbl %dil, %eax
; X64-NEXT: decl %eax
; X64-NEXT: retq
%z = zext i8 %x to i16
%dec = add i16 %z, -1
%r = sext i16 %dec to i32
ret i32 %r
}