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[PowerPC] Disable part-word atomics on the P7
As it turns out, even though these are part of ISA 2.06, the P7 does not support them (or, at least, not any P7s we're tested so far). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234686 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -163,12 +163,12 @@ def ProcessorFeatures {
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FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX,
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FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX,
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FeatureFPRND, FeatureFPCVT, FeatureISEL,
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FeatureFPRND, FeatureFPCVT, FeatureISEL,
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FeaturePOPCNTD, FeatureCMPB, FeatureLDBRX,
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FeaturePOPCNTD, FeatureCMPB, FeatureLDBRX,
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Feature64Bit /*, Feature64BitRegs */, FeaturePartwordAtomic,
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Feature64Bit /*, Feature64BitRegs */,
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FeatureBPERMD, FeatureExtDiv,
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FeatureBPERMD, FeatureExtDiv,
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DeprecatedMFTB, DeprecatedDST];
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DeprecatedMFTB, DeprecatedDST];
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list<SubtargetFeature> Power8SpecificFeatures =
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list<SubtargetFeature> Power8SpecificFeatures =
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[DirectivePwr8, FeatureP8Altivec, FeatureP8Vector, FeatureP8Crypto,
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[DirectivePwr8, FeatureP8Altivec, FeatureP8Vector, FeatureP8Crypto,
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FeatureHTM, FeatureDirectMove, FeatureICBT];
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FeatureHTM, FeatureDirectMove, FeatureICBT, FeaturePartwordAtomic];
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list<SubtargetFeature> Power8FeatureList =
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list<SubtargetFeature> Power8FeatureList =
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!listconcat(Power7FeatureList, Power8SpecificFeatures);
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!listconcat(Power7FeatureList, Power8SpecificFeatures);
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}
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}
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@ -1,6 +1,6 @@
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; RUN: llc < %s -march=ppc64 | FileCheck %s
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; RUN: llc < %s -march=ppc64 | FileCheck %s
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; RUN: llc < %s -march=ppc64 -mcpu=pwr7 | FileCheck %s -check-prefix=CHECK-P7U
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; RUN: llc < %s -march=ppc64 -mcpu=pwr7 | FileCheck %s
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; RUN: llc < %s -march=ppc64 -mcpu=pwr8 | FileCheck %s -check-prefix=CHECK-P7U
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; RUN: llc < %s -march=ppc64 -mcpu=pwr8 | FileCheck %s -check-prefix=CHECK-P8U
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define i64 @exchange_and_add(i64* %mem, i64 %val) nounwind {
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define i64 @exchange_and_add(i64* %mem, i64 %val) nounwind {
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; CHECK-LABEL: exchange_and_add:
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; CHECK-LABEL: exchange_and_add:
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@ -12,17 +12,17 @@ define i64 @exchange_and_add(i64* %mem, i64 %val) nounwind {
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define i8 @exchange_and_add8(i8* %mem, i8 %val) nounwind {
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define i8 @exchange_and_add8(i8* %mem, i8 %val) nounwind {
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; CHECK-LABEL: exchange_and_add8:
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; CHECK-LABEL: exchange_and_add8:
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; CHECK-P7U: lbarx
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; CHECK-P8U: lbarx
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%tmp = atomicrmw add i8* %mem, i8 %val monotonic
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%tmp = atomicrmw add i8* %mem, i8 %val monotonic
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; CHECK-P7U: stbcx.
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; CHECK-P8U: stbcx.
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ret i8 %tmp
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ret i8 %tmp
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}
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}
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define i16 @exchange_and_add16(i16* %mem, i16 %val) nounwind {
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define i16 @exchange_and_add16(i16* %mem, i16 %val) nounwind {
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; CHECK-LABEL: exchange_and_add16:
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; CHECK-LABEL: exchange_and_add16:
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; CHECK-P7U: lharx
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; CHECK-P8U: lharx
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%tmp = atomicrmw add i16* %mem, i16 %val monotonic
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%tmp = atomicrmw add i16* %mem, i16 %val monotonic
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; CHECK-P7U: sthcx.
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; CHECK-P8U: sthcx.
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ret i16 %tmp
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ret i16 %tmp
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}
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}
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@ -38,21 +38,21 @@ define i64 @exchange_and_cmp(i64* %mem) nounwind {
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define i8 @exchange_and_cmp8(i8* %mem) nounwind {
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define i8 @exchange_and_cmp8(i8* %mem) nounwind {
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; CHECK-LABEL: exchange_and_cmp8:
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; CHECK-LABEL: exchange_and_cmp8:
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; CHECK-P7U: lbarx
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; CHECK-P8U: lbarx
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%tmppair = cmpxchg i8* %mem, i8 0, i8 1 monotonic monotonic
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%tmppair = cmpxchg i8* %mem, i8 0, i8 1 monotonic monotonic
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%tmp = extractvalue { i8, i1 } %tmppair, 0
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%tmp = extractvalue { i8, i1 } %tmppair, 0
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; CHECK-P7U: stbcx.
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; CHECK-P8U: stbcx.
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; CHECK-P7U: stbcx.
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; CHECK-P8U: stbcx.
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ret i8 %tmp
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ret i8 %tmp
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}
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}
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define i16 @exchange_and_cmp16(i16* %mem) nounwind {
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define i16 @exchange_and_cmp16(i16* %mem) nounwind {
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; CHECK-LABEL: exchange_and_cmp16:
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; CHECK-LABEL: exchange_and_cmp16:
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; CHECK-P7U: lharx
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; CHECK-P8U: lharx
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%tmppair = cmpxchg i16* %mem, i16 0, i16 1 monotonic monotonic
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%tmppair = cmpxchg i16* %mem, i16 0, i16 1 monotonic monotonic
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%tmp = extractvalue { i16, i1 } %tmppair, 0
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%tmp = extractvalue { i16, i1 } %tmppair, 0
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; CHECK-P7U: sthcx.
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; CHECK-P8U: sthcx.
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; CHECK-P7U: sthcx.
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; CHECK-P8U: sthcx.
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ret i16 %tmp
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ret i16 %tmp
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}
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}
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@ -66,17 +66,17 @@ define i64 @exchange(i64* %mem, i64 %val) nounwind {
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define i8 @exchange8(i8* %mem, i8 %val) nounwind {
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define i8 @exchange8(i8* %mem, i8 %val) nounwind {
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; CHECK-LABEL: exchange8:
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; CHECK-LABEL: exchange8:
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; CHECK-P7U: lbarx
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; CHECK-P8U: lbarx
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%tmp = atomicrmw xchg i8* %mem, i8 1 monotonic
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%tmp = atomicrmw xchg i8* %mem, i8 1 monotonic
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; CHECK-P7U: stbcx.
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; CHECK-P8U: stbcx.
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ret i8 %tmp
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ret i8 %tmp
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}
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}
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define i16 @exchange16(i16* %mem, i16 %val) nounwind {
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define i16 @exchange16(i16* %mem, i16 %val) nounwind {
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; CHECK-LABEL: exchange16:
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; CHECK-LABEL: exchange16:
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; CHECK-P7U: lharx
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; CHECK-P8U: lharx
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%tmp = atomicrmw xchg i16* %mem, i16 1 monotonic
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%tmp = atomicrmw xchg i16* %mem, i16 1 monotonic
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; CHECK-P7U: sthcx.
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; CHECK-P8U: sthcx.
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ret i16 %tmp
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ret i16 %tmp
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}
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}
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