187 lines
6.7 KiB
LLVM
187 lines
6.7 KiB
LLVM
; RUN: opt -basic-aa -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"
|
|
|
|
; CHECK: @.memset_pattern = private unnamed_addr constant [4 x i32] [i32 2, i32 2, i32 2, i32 2], align 16
|
|
; CHECK: @.memset_pattern.1 = private unnamed_addr constant [4 x i32] [i32 2, i32 2, i32 2, i32 2], align 16
|
|
; CHECK: @.memset_pattern.2 = private unnamed_addr constant [4 x i32] [i32 2, i32 2, i32 2, i32 2], align 16
|
|
|
|
target triple = "x86_64-apple-darwin10.0.0"
|
|
|
|
%struct.foo = type { i32, i32 }
|
|
%struct.foo1 = type { i32, i32, i32 }
|
|
|
|
;void bar1(foo_t *f, unsigned n) {
|
|
; for (unsigned i = 0; i < n; ++i) {
|
|
; f[i].a = 2;
|
|
; f[i].b = 2;
|
|
; }
|
|
;}
|
|
define void @bar1(%struct.foo* %f, i32 %n) nounwind ssp {
|
|
entry:
|
|
%cmp1 = icmp eq i32 %n, 0
|
|
br i1 %cmp1, label %for.end, label %for.body.preheader
|
|
|
|
for.body.preheader: ; preds = %entry
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.body.preheader, %for.body
|
|
%indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
|
|
%a = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 0
|
|
store i32 2, i32* %a, align 4
|
|
%b = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 1
|
|
store i32 2, i32* %b, align 4
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
|
|
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
|
|
%exitcond = icmp ne i32 %lftr.wideiv, %n
|
|
br i1 %exitcond, label %for.body, label %for.end.loopexit
|
|
|
|
for.end.loopexit: ; preds = %for.body
|
|
br label %for.end
|
|
|
|
for.end: ; preds = %for.end.loopexit, %entry
|
|
ret void
|
|
; CHECK-LABEL: @bar1(
|
|
; CHECK: call void @memset_pattern16
|
|
; CHECK-NOT: store
|
|
}
|
|
|
|
;void bar2(foo_t *f, unsigned n) {
|
|
; for (unsigned i = 0; i < n; ++i) {
|
|
; f[i].b = 2;
|
|
; f[i].a = 2;
|
|
; }
|
|
;}
|
|
define void @bar2(%struct.foo* %f, i32 %n) nounwind ssp {
|
|
entry:
|
|
%cmp1 = icmp eq i32 %n, 0
|
|
br i1 %cmp1, label %for.end, label %for.body.preheader
|
|
|
|
for.body.preheader: ; preds = %entry
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.body.preheader, %for.body
|
|
%indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
|
|
%b = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 1
|
|
store i32 2, i32* %b, align 4
|
|
%a = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 0
|
|
store i32 2, i32* %a, align 4
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
|
|
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
|
|
%exitcond = icmp ne i32 %lftr.wideiv, %n
|
|
br i1 %exitcond, label %for.body, label %for.end.loopexit
|
|
|
|
for.end.loopexit: ; preds = %for.body
|
|
br label %for.end
|
|
|
|
for.end: ; preds = %for.end.loopexit, %entry
|
|
ret void
|
|
; CHECK-LABEL: @bar2(
|
|
; CHECK: call void @memset_pattern16
|
|
; CHECK-NOT: store
|
|
}
|
|
|
|
;void bar3(foo_t *f, unsigned n) {
|
|
; for (unsigned i = n; i > 0; --i) {
|
|
; f[i].a = 2;
|
|
; f[i].b = 2;
|
|
; }
|
|
;}
|
|
define void @bar3(%struct.foo* nocapture %f, i32 %n) nounwind ssp {
|
|
entry:
|
|
%cmp1 = icmp eq i32 %n, 0
|
|
br i1 %cmp1, label %for.end, label %for.body.preheader
|
|
|
|
for.body.preheader: ; preds = %entry
|
|
%0 = zext i32 %n to i64
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.body.preheader, %for.body
|
|
%indvars.iv = phi i64 [ %0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
|
|
%a = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 0
|
|
store i32 2, i32* %a, align 4
|
|
%b = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 1
|
|
store i32 2, i32* %b, align 4
|
|
%1 = trunc i64 %indvars.iv to i32
|
|
%dec = add i32 %1, -1
|
|
%cmp = icmp eq i32 %dec, 0
|
|
%indvars.iv.next = add nsw i64 %indvars.iv, -1
|
|
br i1 %cmp, label %for.end.loopexit, label %for.body
|
|
|
|
for.end.loopexit: ; preds = %for.body
|
|
br label %for.end
|
|
|
|
for.end: ; preds = %for.end.loopexit, %entry
|
|
ret void
|
|
; CHECK-LABEL: @bar3(
|
|
; CHECK: call void @memset_pattern16
|
|
; CHECK-NOT: store
|
|
}
|
|
|
|
;void bar4(foo_t *f, unsigned n) {
|
|
; for (unsigned i = 0; i < n; ++i) {
|
|
; f[i].a = 0;
|
|
; f[i].b = 1;
|
|
; }
|
|
;}
|
|
define void @bar4(%struct.foo* nocapture %f, i32 %n) nounwind ssp {
|
|
entry:
|
|
%cmp1 = icmp eq i32 %n, 0
|
|
br i1 %cmp1, label %for.end, label %for.body.preheader
|
|
|
|
for.body.preheader: ; preds = %entry
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.body.preheader, %for.body
|
|
%indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
|
|
%a = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 0
|
|
store i32 0, i32* %a, align 4
|
|
%b = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 1
|
|
store i32 1, i32* %b, align 4
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
|
|
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
|
|
%exitcond = icmp ne i32 %lftr.wideiv, %n
|
|
br i1 %exitcond, label %for.body, label %for.end.loopexit
|
|
|
|
for.end.loopexit: ; preds = %for.body
|
|
br label %for.end
|
|
|
|
for.end: ; preds = %for.end.loopexit, %entry
|
|
ret void
|
|
; CHECK-LABEL: @bar4(
|
|
; CHECK-NOT: call void @memset_pattern16
|
|
}
|
|
|
|
;void bar5(foo1_t *f, unsigned n) {
|
|
; for (unsigned i = 0; i < n; ++i) {
|
|
; f[i].a = 1;
|
|
; f[i].b = 1;
|
|
; }
|
|
;}
|
|
define void @bar5(%struct.foo1* nocapture %f, i32 %n) nounwind ssp {
|
|
entry:
|
|
%cmp1 = icmp eq i32 %n, 0
|
|
br i1 %cmp1, label %for.end, label %for.body.preheader
|
|
|
|
for.body.preheader: ; preds = %entry
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.body.preheader, %for.body
|
|
%indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
|
|
%a = getelementptr inbounds %struct.foo1, %struct.foo1* %f, i64 %indvars.iv, i32 0
|
|
store i32 1, i32* %a, align 4
|
|
%b = getelementptr inbounds %struct.foo1, %struct.foo1* %f, i64 %indvars.iv, i32 1
|
|
store i32 1, i32* %b, align 4
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
|
|
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
|
|
%exitcond = icmp ne i32 %lftr.wideiv, %n
|
|
br i1 %exitcond, label %for.body, label %for.end.loopexit
|
|
|
|
for.end.loopexit: ; preds = %for.body
|
|
br label %for.end
|
|
|
|
for.end: ; preds = %for.end.loopexit, %entry
|
|
ret void
|
|
; CHECK-LABEL: @bar5(
|
|
; CHECK-NOT: call void @memset_pattern16
|
|
}
|