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0037bfabd4
ipconstprop and doesn't take much time. Just run it in its place. This adds a testcase for it, which I plan to expand to cover other "integration" cases, where we expect the optimizer to be able to eliminate various things. Due to phase order issues we've regressed in a number of areas and integration tests are the only way I see to prevent this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85729 91177308-0d34-0410-b5e6-96231b3b80d8
20 lines
402 B
C++
20 lines
402 B
C++
// RUN: %llvmgxx %s -O2 -S -o - | FileCheck %s
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// This test verifies that we get expected codegen out of the -O2 optimization
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// level from the full optimizer.
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// Verify that ipsccp is running and can eliminate globals.
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static int test1g = 42;
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void test1f1() {
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if (test1g == 0) test1g = 0;
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}
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int test1f2() {
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return test1g;
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}
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// CHECK: @_Z7test1f2v()
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// CHECK: entry:
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// CHECK-NEXT: ret i32 42
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