c23b4fbdbb
Now that #149310 has restricted lifetime intrinsics to only work on allocas, we can also drop the explicit size argument. Instead, the size is implied by the alloca. This removes the ability to only mark a prefix of an alloca alive/dead. We never used that capability, so we should remove the need to handle that possibility everywhere (though many key places, including stack coloring, did not actually respect this).
57 lines
1.9 KiB
LLVM
57 lines
1.9 KiB
LLVM
; Note: Make sure that instrumention intrinsic is after entry alloca.
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; RUN: opt < %s -passes=pgo-instr-gen -S | FileCheck %s
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; RUN: opt < %s -passes=pgo-instr-gen,instrprof -sampled-instrumentation -S | FileCheck %s --check-prefixes=SAMPLE
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%struct.A = type { i32, [0 x i32] }
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%struct.B = type { i32, [0 x double] }
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; CHECK-LABEL: @foo()
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; CHECK-NEXT: %1 = alloca %struct.A
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; CHECK-NEXT: %2 = alloca %struct.B
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; CHECK-NEXT: call void @llvm.instrprof.increment(ptr @__profn_foo
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; SAMPLE: @foo()
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; SAMPLE-NEXT: %1 = alloca %struct.A
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; SAMPLE-NEXT: %2 = alloca %struct.B
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; SAMPLE-NEXT: %[[v:[0-9]+]] = load i16, ptr @__llvm_profile_sampling
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; SAMPLE-NEXT: {{.*}} = icmp ule i16 %[[v]], 199
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define dso_local double @foo() {
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%1 = alloca %struct.A, align 4
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%2 = alloca %struct.B, align 8
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call void @llvm.lifetime.start.p0(ptr nonnull %1)
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call void @llvm.lifetime.start.p0(ptr nonnull %2)
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call void @bar(ptr noundef nonnull %1, ptr noundef nonnull %2)
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%3 = load i32, ptr %1, align 4
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%4 = icmp sgt i32 %3, 0
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br i1 %4, label %5, label %21
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5:
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%6 = getelementptr inbounds i8, ptr %1, i64 4
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%7 = getelementptr inbounds i8, ptr %2, i64 8
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%8 = zext nneg i32 %3 to i64
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br label %9
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9:
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%10 = phi i64 [ 0, %5 ], [ %19, %9 ]
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%11 = phi double [ 0.000000e+00, %5 ], [ %18, %9 ]
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%12 = getelementptr inbounds [0 x i32], ptr %6, i64 0, i64 %10
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%13 = load i32, ptr %12, align 4
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%14 = sitofp i32 %13 to double
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%15 = getelementptr inbounds [0 x double], ptr %7, i64 0, i64 %10
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%16 = load double, ptr %15, align 8
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%17 = fadd double %16, %14
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%18 = fadd double %11, %17
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%19 = add nuw nsw i64 %10, 1
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%20 = icmp eq i64 %19, %8
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br i1 %20, label %21, label %9
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21:
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%22 = phi double [ 0.000000e+00, %0 ], [ %18, %9 ]
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call void @llvm.lifetime.end.p0(ptr nonnull %2)
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call void @llvm.lifetime.end.p0(ptr nonnull %1)
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ret double %22
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}
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declare void @bar(ptr noundef, ptr noundef)
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