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TheRock/compiler/amd-llvm/llvm/test/Transforms/FunctionSpecialization/non-argument-tracked.ll
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2026-09-02 16:34:47 -07:00

67 lines
2.0 KiB
LLVM

; RUN: opt -S --passes=ipsccp,deadargelim -funcspec-for-literal-constant --force-specialization < %s | FileCheck %s
; Test that all of `f0`, `f1`, and `f2` are specialised, even though `f0` has its address taken
; and `f1` is with external linkage (`f2` was specialised anyway).
@p = global ptr @f0
; `f0` is kept even though all apparent calls are specialized
; CHECK-LABEL: define internal i32 @f0(
define internal i32 @f0(i32 %i) {
%v = add i32 %i, 1
ret i32 %v
}
; Likewise, `f1` is kept, because of the external linkage
; CHECK-LABEL: define i32 @f1(
define i32 @f1(i32 %i) {
%v = add i32 %i, 1
ret i32 %v
}
; `f2` is fully specialised.
; CHECK-NOT: defined internal i32 @f2()
define internal i32 @f2(i32 %i) {
%v = add i32 %i, 1
ret i32 %v
}
;; All calls are to specilisation instances.
; CHECK-LABEL: define i32 @g0
; CHECK: call void @f0.specialized.[[#A:]]()
; CHECK-NEXT: call void @f1.specialized.[[#B:]]()
; CHECK-NEXT: call void @f2.specialized.[[#C:]]()
; CHECK-NEXT: ret i32 9
define i32 @g0(i32 %i) {
%u0 = call i32 @f0(i32 1)
%u1 = call i32 @f1(i32 2)
%u2 = call i32 @f2(i32 3)
%v0 = add i32 %u0, %u1
%v = add i32 %v0, %u2
ret i32 %v
}
; CHECK-LABEL: define i32 @g1
; CHECK: call void @f0.specialized.[[#D:]]()
; CHECK-NEXT: call void @f1.specialized.[[#E:]]()
; CHECK-NEXT: call void @f2.specialized.[[#F:]]()
; CHECK-NEXT: ret i32 12
define i32 @g1(i32 %i) {
%u0 = call i32 @f0(i32 2)
%u1 = call i32 @f1(i32 3)
%u2 = call i32 @f2(i32 4)
%v0 = add i32 %u0, %u1
%v = add i32 %v0, %u2
ret i32 %v
}
; All of the function are specialized and all clones are with internal linkage.
; CHECK-DAG: define internal void @f0.specialized.[[#A]]() {
; CHECK-DAG: define internal void @f1.specialized.[[#B]]() {
; CHECK-DAG: define internal void @f2.specialized.[[#C]]() {
; CHECK-DAG: define internal void @f0.specialized.[[#D]]() {
; CHECK-DAG: define internal void @f1.specialized.[[#E]]() {
; CHECK-DAG: define internal void @f2.specialized.[[#F]]() {