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llvm-mirror/test/CodeGen/PowerPC/testComparesi32leu.ll
Kang Zhang bb10587376 [PowerPC] Ignore implicit register operands for MCInst
Summary:
When doing the conversion: MachineInst -> MCInst, we should ignore the
implicit operands, it will expose more opportunity for InstiAlias.

Reviewed By: steven.zhang

Differential Revision: https://reviews.llvm.org/D77118
2020-04-16 16:22:43 +00:00

27 lines
1.0 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -O2 \
; RUN: -ppc-gpr-icmps=all -ppc-asm-full-reg-names -mcpu=pwr8 < %s | FileCheck %s \
; RUN: --implicit-check-not cmpw --implicit-check-not cmpd --implicit-check-not cmpl
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -O2 \
; RUN: -ppc-gpr-icmps=all -ppc-asm-full-reg-names -mcpu=pwr8 < %s | FileCheck %s \
; RUN: --implicit-check-not cmpw --implicit-check-not cmpd --implicit-check-not cmpl
define signext i32 @test(i8 zeroext %a, i8 zeroext %b) {
; CHECK-LABEL: test:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: clrlwi r3, r3, 31
; CHECK-NEXT: clrlwi r4, r4, 31
; CHECK-NEXT: clrldi r3, r3, 32
; CHECK-NEXT: clrldi r4, r4, 32
; CHECK-NEXT: sub r3, r4, r3
; CHECK-NEXT: rldicl r3, r3, 1, 63
; CHECK-NEXT: xori r3, r3, 1
; CHECK-NEXT: blr
entry:
%0 = and i8 %a, 1
%1 = and i8 %b, 1
%cmp = icmp ule i8 %0, %1
%conv3 = zext i1 %cmp to i32
ret i32 %conv3
}