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 commit 0524534d5220da5ecb2cd424a46520184d2be366. This reverts commit ced90d1ff64a89a13479a37a3b17a411a3259f9f. This reverts commit 9f992cc9350a7f7072a6dbf018ea07142ea7a7ed. This reverts commit 1b1232047e83b69561fd64b9547cb0a0d374473a.
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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