173 lines
5.3 KiB
LLVM
173 lines
5.3 KiB
LLVM
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; RUN: opt < %s -passes=pgo-instr-gen -pgo-function-entry-coverage -S | FileCheck %s --implicit-check-not="instrprof.cover" --check-prefixes=CHECK,GEN,ENTRY
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; RUN: opt < %s -passes=pgo-instr-gen -pgo-block-coverage -S | FileCheck %s --implicit-check-not="instrprof.cover" --check-prefixes=CHECK,GEN,BLOCK
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; RUN: llvm-profdata merge %S/Inputs/coverage.proftext -o %t.profdata
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; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefixes=CHECK,USE
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; CHECK-LABEL: @foo()
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; USE-SAME: !prof ![[HOT:[0-9]+]]
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define void @foo() {
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; CHECK-LABEL: entry:
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entry:
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; ENTRY: call void @llvm.instrprof.cover({{.*}})
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%c = call i1 @choice()
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br i1 %c, label %if.then, label %if.else
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; USE: br i1 %c, label %if.then, label %if.else, !prof ![[WEIGHTS0:[0-9]+]]
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; CHECK-LABEL: if.then:
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if.then:
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; BLOCK: call void @llvm.instrprof.cover({{.*}})
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br label %if.end
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; CHECK-LABEL: if.else:
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if.else:
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; BLOCK: call void @llvm.instrprof.cover({{.*}})
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br label %if.end
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; CHECK-LABEL: if.end:
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if.end:
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ret void
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}
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; CHECK-LABEL: @bar()
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; USE-SAME: !prof ![[HOT:[0-9]+]]
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define void @bar() {
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; CHECK-LABEL: entry:
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entry:
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; ENTRY: call void @llvm.instrprof.cover({{.*}})
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%c = call i1 @choice()
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br i1 %c, label %if.then, label %if.end
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; USE: br i1 %c, label %if.then, label %if.end, !prof ![[WEIGHTS1:[0-9]+]]
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; CHECK-LABEL: if.then:
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if.then:
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; BLOCK: call void @llvm.instrprof.cover({{.*}})
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br label %if.end
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; CHECK-LABEL: if.end:
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if.end:
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; BLOCK: call void @llvm.instrprof.cover({{.*}})
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ret void
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}
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; CHECK-LABEL: @goo()
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; USE-SAME: !prof ![[HOT:[0-9]+]]
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define void @goo() {
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; CHECK-LABEL: entry:
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entry:
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; GEN: call void @llvm.instrprof.cover({{.*}})
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ret void
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}
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; CHECK-LABEL: @loop()
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; USE-SAME: !prof ![[HOT:[0-9]+]]
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define void @loop() {
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; CHECK-LABEL: entry:
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entry:
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; GEN: call void @llvm.instrprof.cover({{.*}})
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br label %while
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while:
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; BLOCK: call void @llvm.instrprof.cover({{.*}})
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br label %while
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}
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; CHECK-LABEL: @hoo(
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; USE-SAME: !prof ![[HOT:[0-9]+]]
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define void @hoo(i32 %a) #0 {
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; CHECK-LABEL: entry:
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entry:
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; ENTRY: call void @llvm.instrprof.cover({{.*}})
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%a.addr = alloca i32, align 4
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%i = alloca i32, align 4
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store i32 %a, i32* %a.addr, align 4
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%0 = load i32, i32* %a.addr, align 4
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%rem = srem i32 %0, 2
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%cmp = icmp eq i32 %rem, 0
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br i1 %cmp, label %if.then, label %if.else
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; USE: br i1 %cmp, label %if.then, label %if.else, !prof ![[WEIGHTS1]]
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; CHECK-LABEL: if.then:
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if.then: ; preds = %entry
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; BLOCK: call void @llvm.instrprof.cover({{.*}})
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br label %if.end
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; CHECK-LABEL: if.else:
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if.else: ; preds = %entry
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; BLOCK: call void @llvm.instrprof.cover({{.*}})
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br label %if.end
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; CHECK-LABEL: if.end:
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if.end: ; preds = %if.else, %if.then
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store i32 1, i32* %i, align 4
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br label %for.cond
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; CHECK-LABEL: for.cond:
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for.cond: ; preds = %for.inc, %if.end
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%1 = load i32, i32* %i, align 4
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%2 = load i32, i32* %a.addr, align 4
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%cmp1 = icmp slt i32 %1, %2
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br i1 %cmp1, label %for.body, label %for.end
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; USE: br i1 %cmp1, label %for.body, label %for.end, !prof ![[WEIGHTS1]]
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; CHECK-LABEL: for.body:
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for.body: ; preds = %for.cond
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%3 = load i32, i32* %a.addr, align 4
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%rem2 = srem i32 %3, 3
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%cmp3 = icmp eq i32 %rem2, 0
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br i1 %cmp3, label %if.then4, label %if.else5
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; USE: br i1 %cmp3, label %if.then4, label %if.else5, !prof ![[WEIGHTS0]]
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; CHECK-LABEL: if.then4:
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if.then4: ; preds = %for.body
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; BLOCK: call void @llvm.instrprof.cover({{.*}})
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br label %if.end10
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; CHECK-LABEL: if.else5:
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if.else5: ; preds = %for.body
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%4 = load i32, i32* %a.addr, align 4
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%rem6 = srem i32 %4, 1001
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%cmp7 = icmp eq i32 %rem6, 0
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br i1 %cmp7, label %if.then8, label %if.end9
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; USE: br i1 %cmp7, label %if.then8, label %if.end9, !prof ![[WEIGHTS1]]
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; CHECK-LABEL: if.then8:
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if.then8: ; preds = %if.else5
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; BLOCK: call void @llvm.instrprof.cover({{.*}})
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br label %return
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; CHECK-LABEL: if.end9:
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if.end9: ; preds = %if.else5
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; BLOCK: call void @llvm.instrprof.cover({{.*}})
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br label %if.end10
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; CHECK-LABEL: if.end10:
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if.end10: ; preds = %if.end9, %if.then4
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br label %for.inc
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; CHECK-LABEL: for.inc:
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for.inc: ; preds = %if.end10
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%5 = load i32, i32* %i, align 4
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%inc = add nsw i32 %5, 1
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store i32 %inc, i32* %i, align 4
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br label %for.cond
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; CHECK-LABEL: for.end:
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for.end: ; preds = %for.cond
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; BLOCK: call void @llvm.instrprof.cover({{.*}})
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br label %return
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; CHECK-LABEL: return:
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return: ; preds = %for.end, %if.then8
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ret void
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}
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declare i1 @choice()
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; GEN: declare void @llvm.instrprof.cover({{.*}})
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; USE-DAG: ![[HOT]] = !{!"function_entry_count", i64 10000}
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; USE-DAG: ![[WEIGHTS0]] = !{!"branch_weights", i32 1, i32 1}
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; USE-DAG: ![[WEIGHTS1]] = !{!"branch_weights", i32 1, i32 0}
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