derek.holloway
7502bf64a4
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17 lines
517 B
C
17 lines
517 B
C
// Test if PGO sample use preparation passes are executed correctly.
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//
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// Ensure that instcombine is executed after simplifycfg and sroa so that
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// "a < 255" will not be converted to a * 256 < 255 * 256.
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// RUN: %clang_cc1 -O2 -fprofile-sample-use=%S/Inputs/pgo-sample.prof %s -emit-llvm -o - 2>&1 | FileCheck %s
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void bar(int);
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void foo(int x, int y, int z) {
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int m;
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for (m = 0; m < x ; m++) {
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int a = (((y >> 8) & 0xff) * z) / 256;
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bar(a < 255 ? a : 255);
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}
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}
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// CHECK-NOT: icmp slt i32 %mul, 65280
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