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TheRock/compiler/amd-llvm/llvm/test/Transforms/FunctionSpecialization/function-specialization.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

74 lines
2.0 KiB
LLVM

; RUN: opt -passes="ipsccp<func-spec>" -funcspec-min-function-size=3 -S < %s | FileCheck %s
; RUN: opt -passes="ipsccp<no-func-spec>" -funcspec-min-function-size=3 -S < %s | FileCheck %s --check-prefix=NOFSPEC
define i64 @main(i64 %x, i1 %flag) {
;
; CHECK-LABEL: @main(i64 %x, i1 %flag) {
; CHECK: entry:
; CHECK-NEXT: br i1 %flag, label %plus, label %minus
; CHECK: plus:
; CHECK-NEXT: [[TMP0:%.+]] = call i64 @compute.specialized.1(i64 %x, ptr @plus)
; CHECK-NEXT: br label %merge
; CHECK: minus:
; CHECK-NEXT: [[TMP1:%.+]] = call i64 @compute.specialized.2(i64 %x, ptr @minus)
; CHECK-NEXT: br label %merge
; CHECK: merge:
; CHECK-NEXT: [[TMP2:%.+]] = phi i64 [ [[TMP0]], %plus ], [ [[TMP1]], %minus ]
; CHECK-NEXT: ret i64 [[TMP2]]
; CHECK-NEXT: }
;
; NOFSPEC-LABEL: @main(i64 %x, i1 %flag) {
; NOFSPEC-NOT: call i64 @compute.specialized.{{[0-9]+}}(
; NOFSPEC: call i64 @compute(
;
entry:
br i1 %flag, label %plus, label %minus
plus:
%tmp0 = call i64 @compute(i64 %x, ptr @plus)
br label %merge
minus:
%tmp1 = call i64 @compute(i64 %x, ptr @minus)
br label %merge
merge:
%tmp2 = phi i64 [ %tmp0, %plus ], [ %tmp1, %minus]
ret i64 %tmp2
}
; CHECK-NOT: define internal i64 @compute(
;
; CHECK-LABEL: define internal i64 @compute.specialized.1(i64 %x, ptr %binop) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.+]] = call i64 @plus(i64 %x)
; CHECK-NEXT: ret i64 [[TMP0]]
; CHECK-NEXT: }
;
; CHECK-LABEL: define internal i64 @compute.specialized.2(i64 %x, ptr %binop) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.+]] = call i64 @minus(i64 %x)
; CHECK-NEXT: ret i64 [[TMP0]]
; CHECK-NEXT: }
;
; NOFSPEC: define internal i64 @compute(
; NOFSPEC-NOT: define internal i64 @compute.specialized.{{[0-9]+}}(
;
define internal i64 @compute(i64 %x, ptr %binop) {
entry:
%tmp0 = call i64 %binop(i64 %x)
ret i64 %tmp0
}
define internal i64 @plus(i64 %x) {
entry:
%tmp0 = add i64 %x, 1
ret i64 %tmp0
}
define internal i64 @minus(i64 %x) {
entry:
%tmp0 = sub i64 %x, 1
ret i64 %tmp0
}