0f298a2655
Commit r280364 has introduced some call-graph optmisations making a profiler test "fail" due to not expecting the compiler to be "smart", and fold constants across functions. This commit works around the issue, leaving the origial semantics intact. llvm-svn: 280365
36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
// RUN: rm -fr %t.prof
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// RUN: %clang_pgogen=%t.prof/ -o %t.gen.cs -O2 %s
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// RUN: %t.gen.cs
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// RUN: llvm-profdata merge -o %t.cs.profdata %t.prof/
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// Check context sensitive profile
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// RUN: %clang_profuse=%t.cs.profdata -O2 -emit-llvm -S %s -o - | FileCheck %s --check-prefix=CS
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//
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// RUN: %clang_profgen=%t.profraw -o %t.gen.cis -O2 %s
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// RUN: %t.gen.cis
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// RUN: llvm-profdata merge -o %t.cis.profdata %t.profraw
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// Check context insenstive profile
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// RUN: %clang_profuse=%t.cis.profdata -O2 -emit-llvm -S %s -o - | FileCheck %s --check-prefix=CIS
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int g1 = 1;
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int volatile g2 = 2;
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static void toggle(int t) {
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if (t & 1)
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g1 *= t;
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else
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g2 *= t;
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}
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int main() {
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int i;
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// CS: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD1:[0-9]+]]
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// CIS: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD:[0-9]+]]
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toggle(g1);
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// CS: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD2:[0-9]+]]
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// CIS: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD:[0-9]+]]
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toggle(g2);
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return 0;
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}
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// CS: ![[PD1]] = !{!"branch_weights", i32 0, i32 1}
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// CS: ![[PD2]] = !{!"branch_weights", i32 1, i32 0}
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// CIS: ![[PD]] = !{!"branch_weights", i32 2, i32 2}
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