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TheRock/compiler/amd-llvm/llvm/test/Transforms/LoopIdiom/memset_noidiom.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

31 lines
1.2 KiB
LLVM

; 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"
target triple = "x86_64-apple-darwin10.0.0"
; CHECK-LABEL: @memset(
; CHECK-NOT: llvm.memset
define ptr @memset(ptr %b, i32 %c, i64 %len) nounwind uwtable ssp {
entry:
%cmp1 = icmp ult i64 0, %len
br i1 %cmp1, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
%conv6 = trunc i32 %c to i8
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%indvar = phi i64 [ 0, %for.body.lr.ph ], [ %indvar.next, %for.body ]
%p.02 = getelementptr i8, ptr %b, i64 %indvar
store i8 %conv6, ptr %p.02, align 1
%indvar.next = add i64 %indvar, 1
%exitcond = icmp ne i64 %indvar.next, %len
br i1 %exitcond, label %for.body, label %for.cond.for.end_crit_edge
for.cond.for.end_crit_edge: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.cond.for.end_crit_edge, %entry
ret ptr %b
}