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d48e492a33
XRay allows tuning by minimum function size, but also always instruments functions with loops in them. If the minimum function size is set to a large value the loop instrumention ends up causing most functions to be instrumented anyway. This adds a new flag, xray-ignore-loops, to disable the loop detection logic. Differential Revision: https://reviews.llvm.org/D72659
23 lines
671 B
LLVM
23 lines
671 B
LLVM
; RUN: llc -verify-machineinstrs -filetype=asm -o - -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s
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; RUN: llc -verify-machineinstrs -filetype=asm -o - -mtriple=x86_64-darwin-unknown < %s | FileCheck %s
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define i32 @foo(i32 %i) nounwind noinline uwtable "xray-instruction-threshold"="10" {
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entry:
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br label %Test
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Test:
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%indvar = phi i32 [0, %entry], [%nextindvar, %Inc]
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%cond = icmp eq i32 %indvar, %i
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br i1 %cond, label %Exit, label %Inc
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Inc:
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%nextindvar = add i32 %indvar, 1
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br label %Test
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Exit:
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%retval = phi i32 [%indvar, %Test]
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ret i32 %retval
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}
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; CHECK-LABEL: xray_sled_0:
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; CHECK-NEXT: .ascii "\353\t"
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; CHECK-NEXT: nopw 512(%rax,%rax)
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