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TheRock/compiler/amd-llvm/llvm/test/Transforms/PhaseOrdering/lto-argpromotion-ipsccp.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

69 lines
2.2 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -passes='lto<O3>' -S < %s | FileCheck %s
; We should be able to propagate the constants from @parent to @child.
define void @parent(ptr %p) {
; CHECK-LABEL: define void @parent(
; CHECK-SAME: ptr captures(none) [[P:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: tail call fastcc void @child(ptr [[P]])
; CHECK-NEXT: ret void
;
%c = alloca i32
store i32 5, ptr %c
%n = alloca i32
store i32 1024, ptr %n
call void @child(ptr %p, ptr %n, ptr %c)
ret void
}
define internal void @child(ptr %p, ptr %n, ptr %c) noinline {
; CHECK-LABEL: define internal fastcc void @child(
; CHECK-SAME: ptr captures(none) [[P:%.*]]) unnamed_addr #[[ATTR1:[0-9]+]] {
; CHECK-NEXT: [[ENTRY:.*]]:
; CHECK-NEXT: br label %[[FOR_COND:.*]]
; CHECK: [[FOR_COND]]:
; CHECK-NEXT: [[I_0:%.*]] = phi i32 [ 0, %[[ENTRY]] ], [ [[INC:%.*]], %[[FOR_INC:.*]] ]
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[I_0]], 1024
; CHECK-NEXT: br i1 [[CMP_NOT]], label %[[FOR_END:.*]], label %[[FOR_INC]]
; CHECK: [[FOR_INC]]:
; CHECK-NEXT: [[IDXPROM:%.*]] = zext nneg i32 [[I_0]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw [4 x i8], ptr [[P]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[ARRAYIDX]], align 4
; CHECK-NEXT: [[MUL:%.*]] = mul i32 [[TMP0]], 5
; CHECK-NEXT: store i32 [[MUL]], ptr [[ARRAYIDX]], align 4
; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_0]], 1
; CHECK-NEXT: br label %[[FOR_COND]]
; CHECK: [[FOR_END]]:
; CHECK-NEXT: ret void
;
entry:
br label %for.cond
for.cond:
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
%n.val = load i32, ptr %n
%cmp = icmp ne i32 %i.0, %n.val
br i1 %cmp, label %for.body, label %for.cond.cleanup
for.cond.cleanup:
br label %for.end
for.body:
%idxprom = sext i32 %i.0 to i64
%arrayidx = getelementptr inbounds i32, ptr %p, i64 %idxprom
%0 = load i32, ptr %arrayidx, align 4
%c.val = load i32, ptr %c
%mul = mul i32 %0, %c.val
store i32 %mul, ptr %arrayidx, align 4
br label %for.inc
for.inc:
%inc = add nsw i32 %i.0, 1
br label %for.cond
for.end:
ret void
}