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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
53 lines
1.9 KiB
LLVM
53 lines
1.9 KiB
LLVM
; RUN: opt < %s -argpromotion -S | FileCheck %s
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; RUN: opt < %s -passes=argpromotion -S | FileCheck %s
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%struct.ss = type { i32, i64 }
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; Don't drop 'byval' on %X here.
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define internal void @f(%struct.ss* byval %b, i32* byval %X, i32 %i) nounwind {
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; CHECK-LABEL: define internal void @f(
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; CHECK: i32 %[[B0:.*]], i64 %[[B1:.*]], i32* byval %X, i32 %i)
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entry:
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; CHECK: %[[B:.*]] = alloca %struct.ss
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; CHECK: %[[B_GEP0:.*]] = getelementptr %struct.ss, %struct.ss* %[[B]], i32 0, i32 0
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; CHECK: store i32 %[[B0]], i32* %[[B_GEP0]]
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; CHECK: %[[B_GEP1:.*]] = getelementptr %struct.ss, %struct.ss* %[[B]], i32 0, i32 1
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; CHECK: store i64 %[[B1]], i64* %[[B_GEP1]]
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%tmp = getelementptr %struct.ss, %struct.ss* %b, i32 0, i32 0
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; CHECK: %[[TMP:.*]] = getelementptr %struct.ss, %struct.ss* %[[B]], i32 0, i32 0
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%tmp1 = load i32, i32* %tmp, align 4
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; CHECK: %[[TMP1:.*]] = load i32, i32* %[[TMP]]
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%tmp2 = add i32 %tmp1, 1
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; CHECK: %[[TMP2:.*]] = add i32 %[[TMP1]], 1
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store i32 %tmp2, i32* %tmp, align 4
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; CHECK: store i32 %[[TMP2]], i32* %[[TMP]]
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store i32 0, i32* %X
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; CHECK: store i32 0, i32* %X
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ret void
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}
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; Also make sure we don't drop the call zeroext attribute.
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define i32 @test(i32* %X) {
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; CHECK-LABEL: define i32 @test(
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entry:
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%S = alloca %struct.ss
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; CHECK: %[[S:.*]] = alloca %struct.ss
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%tmp1 = getelementptr %struct.ss, %struct.ss* %S, i32 0, i32 0
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store i32 1, i32* %tmp1, align 8
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; CHECK: store i32 1
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%tmp4 = getelementptr %struct.ss, %struct.ss* %S, i32 0, i32 1
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store i64 2, i64* %tmp4, align 4
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; CHECK: store i64 2
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call void @f( %struct.ss* byval %S, i32* byval %X, i32 zeroext 0)
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; CHECK: %[[S_GEP0:.*]] = getelementptr %struct.ss, %struct.ss* %[[S]], i32 0, i32 0
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; CHECK: %[[S0:.*]] = load i32, i32* %[[S_GEP0]]
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; CHECK: %[[S_GEP1:.*]] = getelementptr %struct.ss, %struct.ss* %[[S]], i32 0, i32 1
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; CHECK: %[[S1:.*]] = load i64, i64* %[[S_GEP1]]
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; CHECK: call void @f(i32 %[[S0]], i64 %[[S1]], i32* byval %X, i32 zeroext 0)
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ret i32 0
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}
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