96a14f388b
As reported on https://reviews.llvm.org/D150375#4367861 and following, this change causes PDT invalidation issues. Revert it and dependent commits. This reverts commit0524534d52. This reverts commitced90d1ff6. This reverts commit9f992cc935. This reverts commit1b1232047e.
60 lines
1.5 KiB
LLVM
60 lines
1.5 KiB
LLVM
; RUN: opt -passes="ipsccp<func-spec>" -funcspec-min-function-size=3 -S < %s | FileCheck %s
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define i64 @main(i64 %x, i1 %flag) {
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entry:
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br i1 %flag, label %plus, label %minus
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plus:
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%tmp0 = call i64 @compute(i64 %x, ptr @plus)
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br label %merge
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minus:
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%tmp1 = call i64 @compute(i64 %x, ptr @minus)
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br label %merge
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merge:
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%tmp2 = phi i64 [ %tmp0, %plus ], [ %tmp1, %minus]
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ret i64 %tmp2
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}
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; CHECK-NOT: define internal i64 @compute(
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;
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; CHECK-LABEL: define internal i64 @compute.1(i64 %n, ptr %binop) {
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; CHECK: [[TMP0:%.+]] = call i64 @plus(i64 %n)
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; CHECK: [[TMP1:%.+]] = call i64 @compute.1(i64 [[TMP2:%.+]], ptr @plus)
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; CHECK: add nsw i64 [[TMP1]], [[TMP0]]
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;
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; CHECK-LABEL: define internal i64 @compute.2(i64 %n, ptr %binop) {
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; CHECK: [[TMP0:%.+]] = call i64 @minus(i64 %n)
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; CHECK: [[TMP1:%.+]] = call i64 @compute.2(i64 [[TMP2:%.+]], ptr @minus)
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; CHECK: add nsw i64 [[TMP1]], [[TMP0]]
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;
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define internal i64 @compute(i64 %n, ptr %binop) {
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entry:
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%cmp = icmp sgt i64 %n, 0
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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%call = call i64 %binop(i64 %n)
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%sub = add nsw i64 %n, -1
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%call1 = call i64 @compute(i64 %sub, ptr %binop)
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%add2 = add nsw i64 %call1, %call
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br label %if.end
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if.end:
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%result.0 = phi i64 [ %add2, %if.then ], [ 0, %entry ]
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ret i64 %result.0
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}
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define internal i64 @plus(i64 %x) {
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entry:
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%tmp0 = add i64 %x, 1
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ret i64 %tmp0
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}
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define internal i64 @minus(i64 %x) {
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entry:
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%tmp0 = sub i64 %x, 1
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ret i64 %tmp0
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}
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