derek.holloway
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66 lines
2.1 KiB
LLVM
66 lines
2.1 KiB
LLVM
; RUN: llc < %s -mcpu=pwr8 -mtriple=powerpc64le-unknown-unknown | FileCheck %s
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define i8 @atomic_min_i8() {
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top:
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%0 = alloca i8, align 2
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call void @llvm.lifetime.start.p0(i64 2, ptr %0)
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store i8 -1, ptr %0, align 2
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%1 = atomicrmw min ptr %0, i8 0 acq_rel
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%2 = load atomic i8, ptr %0 acquire, align 8
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call void @llvm.lifetime.end.p0(i64 2, ptr %0)
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ret i8 %2
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; CHECK-LABEL: atomic_min_i8
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; CHECK: lbarx [[DST:[0-9]+]],
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; CHECK-NEXT: extsb [[EXT:[0-9]+]], [[DST]]
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; CHECK-NEXT: cmpw [[EXT]], {{[0-9]+}}
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; CHECK-NEXT: blt 0
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}
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define i16 @atomic_min_i16() {
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top:
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%0 = alloca i16, align 2
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call void @llvm.lifetime.start.p0(i64 2, ptr %0)
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store i16 -1, ptr %0, align 2
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%1 = atomicrmw min ptr %0, i16 0 acq_rel
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%2 = load atomic i16, ptr %0 acquire, align 8
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call void @llvm.lifetime.end.p0(i64 2, ptr %0)
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ret i16 %2
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; CHECK-LABEL: atomic_min_i16
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; CHECK: lharx [[DST:[0-9]+]],
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; CHECK-NEXT: extsh [[EXT:[0-9]+]], [[DST]]
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; CHECK-NEXT: cmpw [[EXT]], {{[0-9]+}}
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; CHECK-NEXT: blt 0
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}
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define i8 @atomic_max_i8() {
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top:
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%0 = alloca i8, align 2
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call void @llvm.lifetime.start.p0(i64 2, ptr %0)
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store i8 -1, ptr %0, align 2
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%1 = atomicrmw max ptr %0, i8 0 acq_rel
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%2 = load atomic i8, ptr %0 acquire, align 8
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call void @llvm.lifetime.end.p0(i64 2, ptr %0)
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ret i8 %2
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; CHECK-LABEL: atomic_max_i8
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; CHECK: lbarx [[DST:[0-9]+]],
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; CHECK-NEXT: extsb [[EXT:[0-9]+]], [[DST]]
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; CHECK-NEXT: cmpw [[EXT]], {{[0-9]+}}
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; CHECK-NEXT: bgt 0
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}
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define i16 @atomic_max_i16() {
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top:
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%0 = alloca i16, align 2
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call void @llvm.lifetime.start.p0(i64 2, ptr %0)
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store i16 -1, ptr %0, align 2
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%1 = atomicrmw max ptr %0, i16 0 acq_rel
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%2 = load atomic i16, ptr %0 acquire, align 8
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call void @llvm.lifetime.end.p0(i64 2, ptr %0)
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ret i16 %2
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; CHECK-LABEL: atomic_max_i16
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; CHECK: lharx [[DST:[0-9]+]],
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; CHECK-NEXT: extsh [[EXT:[0-9]+]], [[DST]]
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; CHECK-NEXT: cmpw [[EXT]], {{[0-9]+}}
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; CHECK-NEXT: bgt 0
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}
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declare void @llvm.lifetime.start.p0(i64, ptr)
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declare void @llvm.lifetime.end.p0(i64, ptr)
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