65 lines
3.2 KiB
LLVM
65 lines
3.2 KiB
LLVM
; RUN: llvm-as < %s | llc | FileCheck %s
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; PR 5247
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; check that cmp/test is not scheduled before the add
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
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target triple = "x86_64-unknown-linux-gnu"
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@.str76843 = external dso_local constant [45 x i8] ; <ptr> [#uses=1]
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@__profiling_callsite_timestamps_live = external dso_local global [1216 x i64] ; <ptr> [#uses=2]
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define i32 @cl_init(i32 %initoptions) nounwind {
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entry:
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%retval.i = alloca i32 ; <ptr> [#uses=3]
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%retval = alloca i32 ; <ptr> [#uses=2]
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%initoptions.addr = alloca i32 ; <ptr> [#uses=2]
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tail call void asm sideeffect "cpuid", "~{ax},~{bx},~{cx},~{dx},~{memory},~{dirflag},~{fpsr},~{flags}"() nounwind
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%0 = tail call i64 @llvm.readcyclecounter() nounwind ; <i64> [#uses=1]
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store i32 %initoptions, ptr %initoptions.addr
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call void asm sideeffect "cpuid", "~{ax},~{bx},~{cx},~{dx},~{memory},~{dirflag},~{fpsr},~{flags}"() nounwind
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%1 = call i64 @llvm.readcyclecounter() nounwind ; <i64> [#uses=1]
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%call.i = call i32 @lt_dlinit() nounwind ; <i32> [#uses=1]
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%tobool.i = icmp ne i32 %call.i, 0 ; <i1> [#uses=1]
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br i1 %tobool.i, label %if.then.i, label %if.end.i
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if.then.i: ; preds = %entry
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%call1.i = call i32 @warn_dlerror(ptr @.str76843) nounwind ; <i32> [#uses=0]
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store i32 -1, ptr %retval.i
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br label %lt_init.exit
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if.end.i: ; preds = %entry
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store i32 0, ptr %retval.i
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br label %lt_init.exit
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lt_init.exit: ; preds = %if.end.i, %if.then.i
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%2 = load i32, ptr %retval.i ; <i32> [#uses=1]
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call void asm sideeffect "cpuid", "~{ax},~{bx},~{cx},~{dx},~{memory},~{dirflag},~{fpsr},~{flags}"() nounwind
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%3 = call i64 @llvm.readcyclecounter() nounwind ; <i64> [#uses=1]
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%4 = sub i64 %3, %1 ; <i64> [#uses=1]
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%5 = atomicrmw add ptr getelementptr inbounds ([1216 x i64], ptr @__profiling_callsite_timestamps_live, i32 0, i32 51), i64 %4 monotonic
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;CHECK: lock {{xadd|addq}} %rdx, __profiling_callsite_timestamps_live
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;CHECK-NEXT: testl [[REG:%e[a-z]+]], [[REG]]
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;CHECK-NEXT: jne
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%cmp = icmp eq i32 %2, 0 ; <i1> [#uses=1]
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br i1 %cmp, label %if.then, label %if.end
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if.then: ; preds = %lt_init.exit
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call void @cli_rarload()
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br label %if.end
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if.end: ; preds = %if.then, %lt_init.exit
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store i32 0, ptr %retval
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%6 = load i32, ptr %retval ; <i32> [#uses=1]
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tail call void asm sideeffect "cpuid", "~{ax},~{bx},~{cx},~{dx},~{memory},~{dirflag},~{fpsr},~{flags}"() nounwind
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%7 = tail call i64 @llvm.readcyclecounter() nounwind ; <i64> [#uses=1]
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%8 = sub i64 %7, %0 ; <i64> [#uses=1]
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%9 = atomicrmw add ptr getelementptr inbounds ([1216 x i64], ptr @__profiling_callsite_timestamps_live, i32 0, i32 50), i64 %8 monotonic
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ret i32 %6
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}
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declare void @cli_rarload() nounwind
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declare i32 @lt_dlinit()
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declare i32 @warn_dlerror(ptr) nounwind
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declare i64 @llvm.readcyclecounter() nounwind
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