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TheRock/compiler/amd-llvm/llvm/test/Transforms/LoopIdiom/unordered-atomic-memcpy-noarch.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

43 lines
2.0 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=loop-idiom < %s -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
;; memcpy.atomic formation (atomic load & store) -- element size 2
;; Will not create call due to a max element size of 0
define void @test1(i64 %Size) nounwind ssp {
; CHECK-LABEL: @test1(
; CHECK-NEXT: bb.nph:
; CHECK-NEXT: [[BASE:%.*]] = alloca i16, i32 10000, align 2
; CHECK-NEXT: [[DEST:%.*]] = alloca i16, i32 10000, align 2
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i16, ptr [[BASE]], i64 [[INDVAR]]
; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i16, ptr [[DEST]], i64 [[INDVAR]]
; CHECK-NEXT: [[V:%.*]] = load atomic i16, ptr [[I_0_014]] unordered, align 2
; CHECK-NEXT: store atomic i16 [[V]], ptr [[DESTI]] unordered, align 2
; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE:%.*]]
; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
bb.nph:
%Base = alloca i16, i32 10000
%Dest = alloca i16, i32 10000
br label %for.body
for.body: ; preds = %bb.nph, %for.body
%indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
%I.0.014 = getelementptr i16, ptr %Base, i64 %indvar
%DestI = getelementptr i16, ptr %Dest, i64 %indvar
%V = load atomic i16, ptr %I.0.014 unordered, align 2
store atomic i16 %V, ptr %DestI unordered, align 2
%indvar.next = add i64 %indvar, 1
%exitcond = icmp eq i64 %indvar.next, %Size
br i1 %exitcond, label %for.end, label %for.body
for.end: ; preds = %for.body, %entry
ret void
}