48 lines
1.8 KiB
LLVM
48 lines
1.8 KiB
LLVM
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; RUN: opt < %s -pgo-icall-prom -S -icp-total-percent-threshold=10 | FileCheck %s
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; RUN: opt < %s -passes=pgo-icall-prom -S -icp-total-percent-threshold=10 | FileCheck %s
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; PR42413: Previously the call promotion code did not correctly update the byval
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; attribute. Check that it does. This situation can come up in LTO scenarios
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; where struct types end up not matching.
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target triple = "i686-unknown-linux-gnu"
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%struct.Foo.1 = type { i32 }
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%struct.Foo.2 = type { i32 }
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@foo = common global i32 (%struct.Foo.2*)* null, align 8
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define i32 @func4(%struct.Foo.1* byval(%struct.Foo.1) %p) {
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entry:
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%gep = getelementptr inbounds %struct.Foo.1, %struct.Foo.1* %p, i32 0, i32 0
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%v = load i32, i32* %gep
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ret i32 %v
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}
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define i32 @func5(%struct.Foo.1* byval(%struct.Foo.1) %p) {
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entry:
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%gep = getelementptr inbounds %struct.Foo.1, %struct.Foo.1* %p, i32 0, i32 0
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%v = load i32, i32* %gep
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ret i32 %v
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}
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define i32 @bar(%struct.Foo.2* %f2) {
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entry:
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%tmp = load i32 (%struct.Foo.2*)*, i32 (%struct.Foo.2*)** @foo, align 8
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%call = call i32 %tmp(%struct.Foo.2* byval(%struct.Foo.2) %f2), !prof !1
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ret i32 %call
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}
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!1 = !{!"VP", i32 0, i64 3000, i64 7651369219802541373, i64 1000, i64 3667884930908592509, i64 1000}
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; CHECK: define i32 @bar(%struct.Foo.2* %f2)
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; Cast %struct.Foo.2* to %struct.Foo.1* and use byval(%struct.Foo.2).
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; CHECK: %[[cast:[^ ]*]] = bitcast %struct.Foo.2* %f2 to %struct.Foo.1*
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; CHECK: call i32 @func4(%struct.Foo.1* byval(%struct.Foo.1) %[[cast]])
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; Same but when callee doesn't have explicit byval type.
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; CHECK: %[[cast:[^ ]*]] = bitcast %struct.Foo.2* %f2 to %struct.Foo.1*
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; CHECK: call i32 @func5(%struct.Foo.1* byval(%struct.Foo.1) %[[cast]])
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; Original call stays the same.
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; CHECK: call i32 %tmp(%struct.Foo.2* byval(%struct.Foo.2) %f2)
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