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3f9ad6b478
This re-commits everything that was pulled in r314244. The transformation is off by default (patch to enable it to follow). The code is refactored to have a single entry-point and provide fine-grained control over patterns that it selects. This patch also fixes the bugs in the original code. Everything that failed with the original patch has been re-tested with this patch (with the transformation turned on). So the patch to turn this on is soon to follow. Differential Revision: https://reviews.llvm.org/D38575 llvm-svn: 319434
57 lines
1.9 KiB
LLVM
57 lines
1.9 KiB
LLVM
; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -O2 \
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; RUN: -ppc-gpr-icmps=all -ppc-asm-full-reg-names -mcpu=pwr8 < %s | FileCheck %s \
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; RUN: --implicit-check-not cmpw --implicit-check-not cmpd --implicit-check-not cmpl
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; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -O2 \
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; RUN: -ppc-gpr-icmps=all -ppc-asm-full-reg-names -mcpu=pwr8 < %s | FileCheck %s \
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; RUN: --implicit-check-not cmpw --implicit-check-not cmpd --implicit-check-not cmpl
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@glob = common local_unnamed_addr global i32 0, align 4
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; Function Attrs: norecurse nounwind readnone
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define signext i32 @test_iltui(i32 zeroext %a, i32 zeroext %b) {
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; CHECK-LABEL: test_iltui:
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; CHECK: sub [[REG:r[0-9]+]], r3, r4
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; CHECK-NEXT: rldicl r3, [[REG]], 1, 63
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; CHECK-NEXT: blr
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entry:
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%cmp = icmp ult i32 %a, %b
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%conv = zext i1 %cmp to i32
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ret i32 %conv
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}
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; Function Attrs: norecurse nounwind readnone
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define signext i32 @test_iltui_sext(i32 zeroext %a, i32 zeroext %b) {
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; CHECK-LABEL: test_iltui_sext:
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; CHECK: sub [[REG:r[0-9]+]], r3, r4
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; CHECK-NEXT: sradi r3, [[REG]], 63
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; CHECK-NEXT: blr
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entry:
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%cmp = icmp ult i32 %a, %b
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%sub = sext i1 %cmp to i32
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ret i32 %sub
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}
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; Function Attrs: norecurse nounwind
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define void @test_iltui_store(i32 zeroext %a, i32 zeroext %b) {
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; CHECK-LABEL: test_iltui_store:
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; CHECK: sub [[REG:r[2-9]+]], r3, r4
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; CHECK: rldicl {{r[0-9]+}}, [[REG]], 1, 63
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entry:
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%cmp = icmp ult i32 %a, %b
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%conv = zext i1 %cmp to i32
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store i32 %conv, i32* @glob, align 4
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ret void
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}
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; Function Attrs: norecurse nounwind
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define void @test_iltui_sext_store(i32 zeroext %a, i32 zeroext %b) {
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; CHECK-LABEL: test_iltui_sext_store:
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; CHECK: sub [[REG:r[0-9]+]], r3, r4
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; CHECK: sradi {{r[0-9]+}}, [[REG]], 63
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entry:
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%cmp = icmp ult i32 %a, %b
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%sub = sext i1 %cmp to i32
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store i32 %sub, i32* @glob, align 4
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ret void
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}
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