licm_potential_store.ll
2.86 KB
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; RUN: opt %loadPolly -basic-aa -sroa -instcombine -simplifycfg -tailcallopt \
; RUN: -simplifycfg -reassociate -loop-rotate -instcombine -indvars \
; RUN: -polly-prepare -polly-scops -analyze < %s \
; RUN: \
; RUN: | FileCheck %s --check-prefix=NOLICM
; RUN: opt %loadPolly -basic-aa -sroa -instcombine -simplifycfg -tailcallopt \
; RUN: -simplifycfg -reassociate -loop-rotate -instcombine -indvars -licm \
; RUN: -polly-prepare -polly-scops -analyze < %s \
; RUN: \
; RUN: | FileCheck %s --check-prefix=LICM
; void foo(int n, float A[static const restrict n], float x) {
; // (0)
; for (int i = 0; i < 5; i += 1) {
; for (int j = 0; j < n; j += 1) {
; x = 7; // (1)
; }
; A[0] = x; // (3)
; }
; // (4)
; }
; LICM: Statements
; NOLICM: Statements
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @foo(i32 %n, float* noalias nonnull %A, float %x) {
entry:
%n.addr = alloca i32, align 4
%A.addr = alloca float*, align 8
%x.addr = alloca float, align 4
%i = alloca i32, align 4
%j = alloca i32, align 4
store i32 %n, i32* %n.addr, align 4
store float* %A, float** %A.addr, align 8
store float %x, float* %x.addr, align 4
%tmp = load i32, i32* %n.addr, align 4
%tmp1 = zext i32 %tmp to i64
store i32 0, i32* %i, align 4
br label %for.cond
for.cond: ; preds = %for.inc.4, %entry
%tmp2 = load i32, i32* %i, align 4
%cmp = icmp slt i32 %tmp2, 5
br i1 %cmp, label %for.body, label %for.end.6
for.body: ; preds = %for.cond
store i32 0, i32* %j, align 4
br label %for.cond.1
for.cond.1: ; preds = %for.inc, %for.body
%tmp3 = load i32, i32* %j, align 4
%tmp4 = load i32, i32* %n.addr, align 4
%cmp2 = icmp slt i32 %tmp3, %tmp4
br i1 %cmp2, label %for.body.3, label %for.end
for.body.3: ; preds = %for.cond.1
store float 7.000000e+00, float* %x.addr, align 4
br label %for.inc
for.inc: ; preds = %for.body.3
%tmp5 = load i32, i32* %j, align 4
%add = add nsw i32 %tmp5, 1
store i32 %add, i32* %j, align 4
br label %for.cond.1
for.end: ; preds = %for.cond.1
%tmp6 = load float, float* %x.addr, align 4
%tmp7 = load float*, float** %A.addr, align 8
%arrayidx = getelementptr inbounds float, float* %tmp7, i64 0
store float %tmp6, float* %arrayidx, align 4
br label %for.inc.4
for.inc.4: ; preds = %for.end
%tmp8 = load i32, i32* %i, align 4
%add5 = add nsw i32 %tmp8, 1
store i32 %add5, i32* %i, align 4
br label %for.cond
for.end.6: ; preds = %for.cond
ret void
}
; CHECK: Statements {
; CHECK: Stmt_for_end
; CHECK: }