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

71 lines
2.3 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes="ipsccp<func-spec>" -force-specialization -S < %s | FileCheck %s
; RUN: opt -passes="ipsccp<func-spec>" -force-specialization -funcspec-on-address=0 -S < %s | FileCheck %s
; RUN: opt -passes="ipsccp<func-spec>" -force-specialization -funcspec-on-address=1 -S < %s | FileCheck %s --check-prefix=ON-ADDRESS
; Global B is not constant. We do not specialise on addresses unless we
; enable that:
; ON-ADDRESS: call i32 @foo.specialized.1(i32 %x, ptr @A)
; ON-ADDRESS: call i32 @foo.specialized.2(i32 %y, ptr @B)
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
@A = external dso_local constant i32, align 4
@B = external dso_local global i32, align 4
define dso_local i32 @bar(i32 %x, i32 %y) {
; CHECK-LABEL: @bar(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i32 [[X:%.*]], 0
; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[CALL:%.*]] = call i32 @foo.specialized.1(i32 [[X]], ptr @A)
; CHECK-NEXT: br label [[RETURN:%.*]]
; CHECK: if.else:
; CHECK-NEXT: [[CALL1:%.*]] = call i32 @foo(i32 [[Y:%.*]], ptr @B)
; CHECK-NEXT: br label [[RETURN]]
; CHECK: return:
; CHECK-NEXT: [[RETVAL_0:%.*]] = phi i32 [ [[CALL]], [[IF_THEN]] ], [ [[CALL1]], [[IF_ELSE]] ]
; CHECK-NEXT: ret i32 [[RETVAL_0]]
;
entry:
%tobool = icmp ne i32 %x, 0
br i1 %tobool, label %if.then, label %if.else
if.then:
%call = call i32 @foo(i32 %x, ptr @A)
br label %return
if.else:
%call1 = call i32 @foo(i32 %y, ptr @B)
br label %return
return:
%retval.0 = phi i32 [ %call, %if.then ], [ %call1, %if.else ]
ret i32 %retval.0
}
define internal i32 @foo(i32 %x, ptr %b) {
; CHECK-LABEL: define internal i32 @foo(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[B:%.*]], align 4
; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[X:%.*]], [[TMP0]]
; CHECK-NEXT: ret i32 [[ADD]]
;
entry:
%0 = load i32, ptr %b, align 4
%add = add nsw i32 %x, %0
ret i32 %add
}
; CHECK-LABEL: define internal i32 @foo.specialized.1(i32 %x, ptr %b) {
; CHECK-NEXT: entry:
; CHECK-NEXT: %0 = load i32, ptr @A, align 4
; CHECK-NEXT: %add = add nsw i32 %x, %0
; CHECK-NEXT: ret i32 %add
; CHECK-NEXT: }
; CHECK-NOT: define internal i32 @foo.specialized.2(