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; RUN: opt -passes="ipsccp<func-spec>" -S < %s | \
; RUN: FileCheck %s --check-prefixes=COMMON,DISABLED
; RUN: opt -passes="ipsccp<func-spec>" -force-specialization -S < %s | \
; RUN: FileCheck %s --check-prefixes=COMMON,FORCE
; Test for specializing a constant global.
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 constant i32, align 4
define dso_local i32 @bar(i32 %x, i32 %y) {
; COMMON-LABEL: @bar
; FORCE: %call = call i32 @foo.specialized.1(i32 %x, ptr @A)
; FORCE: %call1 = call i32 @foo.specialized.2(i32 %y, ptr @B)
; DISABLED-NOT: %call1 = call i32 @foo.specialized.1(
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
}
; FORCE-NOT: define internal i32 @foo(
;
; FORCE: define internal i32 @foo.specialized.1(i32 %x, ptr %b) {
; FORCE-NEXT: entry:
; FORCE-NEXT: %0 = load i32, ptr @A, align 4
; FORCE-NEXT: %add = add nsw i32 %x, %0
; FORCE-NEXT: ret i32 %add
; FORCE-NEXT: }
;
; FORCE: define internal i32 @foo.specialized.2(i32 %x, ptr %b) {
; FORCE-NEXT: entry:
; FORCE-NEXT: %0 = load i32, ptr @B, align 4
; FORCE-NEXT: %add = add nsw i32 %x, %0
; FORCE-NEXT: ret i32 %add
; FORCE-NEXT: }
;
define internal i32 @foo(i32 %x, ptr %b) {
entry:
%0 = load i32, ptr %b, align 4
%add = add nsw i32 %x, %0
ret i32 %add
}
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