forked from OSchip/llvm-project
125 lines
4.3 KiB
LLVM
125 lines
4.3 KiB
LLVM
; RUN: opt < %s -pgo-instr-gen -S | FileCheck %s --check-prefix=GEN
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; RUN: llvm-profdata merge %S/Inputs/landingpad.proftext -o %t.profdata
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; RUN: opt < %s -pgo-instr-use -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@val = global i32 0, align 4
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@_ZTIi = external constant i8*
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; GEN: @__profn_bar = private constant [3 x i8] c"bar"
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; GEN: @__profn_foo = private constant [3 x i8] c"foo"
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define i32 @bar(i32 %i) {
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entry:
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; GEN: entry:
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; GEN-NOT: call void @llvm.instrprof.increment
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%rem = srem i32 %i, 3
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%tobool = icmp ne i32 %rem, 0
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br i1 %tobool, label %if.then, label %if.end
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; USE: br i1 %tobool, label %if.then, label %if.end
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; USE-SAME: !prof ![[BW_BAR_ENTRY:[0-9]+]]
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if.then:
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; GEN: if.then:
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; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_bar, i32 0, i32 0), i64 24868915205, i32 2, i32 1)
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%exception = call i8* @__cxa_allocate_exception(i64 4)
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%tmp = bitcast i8* %exception to i32*
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store i32 %i, i32* %tmp, align 16
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call void @__cxa_throw(i8* %exception, i8* bitcast (i8** @_ZTIi to i8*), i8* null)
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unreachable
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if.end:
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; GEN: if.end:
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; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_bar, i32 0, i32 0), i64 24868915205, i32 2, i32 0)
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ret i32 0
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}
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declare i8* @__cxa_allocate_exception(i64)
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declare void @__cxa_throw(i8*, i8*, i8*)
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define i32 @foo(i32 %i) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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entry:
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; GEN: entry:
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; GEN-NOT: call void @llvm.instrprof.increment
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%rem = srem i32 %i, 2
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%tobool = icmp ne i32 %rem, 0
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br i1 %tobool, label %if.then, label %if.end
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; USE: br i1 %tobool, label %if.then, label %if.end
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; USE-SAME: !prof ![[BW_FOO_ENTRY:[0-9]+]]
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if.then:
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; GEN: if.then:
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; GEN-NOT: call void @llvm.instrprof.increment
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%mul = mul nsw i32 %i, 7
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%call = invoke i32 @bar(i32 %mul)
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to label %invoke.cont unwind label %lpad
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invoke.cont:
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; GEN: invoke.cont:
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; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_foo, i32 0, i32 0), i64 59130013419, i32 4, i32 1)
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br label %if.end
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lpad:
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; GEN: lpad:
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; GEN-NOT: call void @llvm.instrprof.increment
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%tmp = landingpad { i8*, i32 }
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catch i8* bitcast (i8** @_ZTIi to i8*)
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%tmp1 = extractvalue { i8*, i32 } %tmp, 0
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%tmp2 = extractvalue { i8*, i32 } %tmp, 1
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br label %catch.dispatch
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catch.dispatch:
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; GEN: catch.dispatch:
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; GEN-NOT: call void @llvm.instrprof.increment
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%tmp3 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches = icmp eq i32 %tmp2, %tmp3
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br i1 %matches, label %catch, label %eh.resume
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; USE: br i1 %matches, label %catch, label %eh.resume
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; USE-SAME: !prof ![[BW_CATCH_DISPATCH:[0-9]+]]
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catch:
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; GEN: catch:
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; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_foo, i32 0, i32 0), i64 59130013419, i32 4, i32 2)
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%tmp4 = call i8* @__cxa_begin_catch(i8* %tmp1)
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%tmp5 = bitcast i8* %tmp4 to i32*
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%tmp6 = load i32, i32* %tmp5, align 4
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%tmp7 = load i32, i32* @val, align 4
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%sub = sub nsw i32 %tmp7, %tmp6
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store i32 %sub, i32* @val, align 4
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call void @__cxa_end_catch()
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br label %try.cont
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try.cont:
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; GEN: try.cont:
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; GEN-NOT: call void @llvm.instrprof.increment
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ret i32 -1
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if.end:
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; GEN: if.end:
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; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_foo, i32 0, i32 0), i64 59130013419, i32 4, i32 0)
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%tmp8 = load i32, i32* @val, align 4
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%add = add nsw i32 %tmp8, %i
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store i32 %add, i32* @val, align 4
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br label %try.cont
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eh.resume:
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; GEN: eh.resume:
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; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_foo, i32 0, i32 0), i64 59130013419, i32 4, i32 3)
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%lpad.val = insertvalue { i8*, i32 } undef, i8* %tmp1, 0
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%lpad.val3 = insertvalue { i8*, i32 } %lpad.val, i32 %tmp2, 1
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resume { i8*, i32 } %lpad.val3
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}
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declare i32 @__gxx_personality_v0(...)
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declare i32 @llvm.eh.typeid.for(i8*)
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declare i8* @__cxa_begin_catch(i8*)
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declare void @__cxa_end_catch()
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; USE: ![[BW_BAR_ENTRY]] = !{!"branch_weights", i32 2, i32 1}
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; USE: ![[BW_FOO_ENTRY]] = !{!"branch_weights", i32 3, i32 2}
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; USE: ![[BW_CATCH_DISPATCH]] = !{!"branch_weights", i32 2, i32 0}
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