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1648ceaabc
Now that the call graph supports efficient replacement of a function and spurious reference edges, we can port ArgumentPromotion to the new pass manager very easily. The old PM-specific bits are sunk into callbacks that the new PM simply doesn't use. Unlike the old PM, the new PM simply does argument promotion and afterward does the update to LCG reflecting the promoted function. Differential Revision: https://reviews.llvm.org/D29580 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294667 91177308-0d34-0410-b5e6-96231b3b80d8
28 lines
554 B
LLVM
28 lines
554 B
LLVM
; RUN: opt < %s -argpromotion -S | FileCheck %s
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; RUN: opt < %s -passes=argpromotion -S | FileCheck %s
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; Don't promote around control flow.
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define internal i32 @callee(i1 %C, i32* %P) {
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; CHECK-LABEL: define internal i32 @callee(
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; CHECK: i1 %C, i32* %P)
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entry:
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br i1 %C, label %T, label %F
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T:
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ret i32 17
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F:
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%X = load i32, i32* %P
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ret i32 %X
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}
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define i32 @foo() {
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; CHECK-LABEL: define i32 @foo(
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entry:
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; CHECK-NOT: load i32, i32* null
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%X = call i32 @callee(i1 true, i32* null)
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; CHECK: call i32 @callee(i1 true, i32* null)
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ret i32 %X
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}
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