; UDiv is safe to speculate if the denominator is known non-zero.
-; CHECK: @safe_udiv
-; CHECK: %div = udiv i64 %x, %or
+; CHECK-LABEL: @safe_udiv(
+; CHECK: %div = udiv i64 %x, 2
; CHECK-NEXT: br label %for.body
define void @safe_udiv(i64 %x, i64 %m, i64 %n, i32* %p, i64* %q) nounwind {
entry:
- %or = or i64 %m, 1
br label %for.body
for.body: ; preds = %entry, %for.inc
%i.02 = phi i64 [ %inc, %for.inc ], [ 0, %entry ]
- %arrayidx = getelementptr inbounds i32* %p, i64 %i.02
- %0 = load i32* %arrayidx, align 4
+ %arrayidx = getelementptr inbounds i32, i32* %p, i64 %i.02
+ %0 = load i32, i32* %arrayidx, align 4
%tobool = icmp eq i32 %0, 0
br i1 %tobool, label %for.inc, label %if.then
if.then: ; preds = %for.body
- %div = udiv i64 %x, %or
- %arrayidx1 = getelementptr inbounds i64* %q, i64 %i.02
+ %div = udiv i64 %x, 2
+ %arrayidx1 = getelementptr inbounds i64, i64* %q, i64 %i.02
store i64 %div, i64* %arrayidx1, align 8
br label %for.inc
; UDiv is unsafe to speculate if the denominator is not known non-zero.
-; CHECK: @unsafe_udiv
+; CHECK-LABEL: @unsafe_udiv(
; CHECK-NOT: udiv
; CHECK: for.body:
for.body: ; preds = %entry, %for.inc
%i.02 = phi i64 [ %inc, %for.inc ], [ 0, %entry ]
- %arrayidx = getelementptr inbounds i32* %p, i64 %i.02
- %0 = load i32* %arrayidx, align 4
+ %arrayidx = getelementptr inbounds i32, i32* %p, i64 %i.02
+ %0 = load i32, i32* %arrayidx, align 4
%tobool = icmp eq i32 %0, 0
br i1 %tobool, label %for.inc, label %if.then
if.then: ; preds = %for.body
%div = udiv i64 %x, %m
- %arrayidx1 = getelementptr inbounds i64* %q, i64 %i.02
+ %arrayidx1 = getelementptr inbounds i64, i64* %q, i64 %i.02
store i64 %div, i64* %arrayidx1, align 8
br label %for.inc
; SDiv is safe to speculate if the denominator is known non-zero and
; known to have at least one zero bit.
-; CHECK: @safe_sdiv
-; CHECK: %div = sdiv i64 %x, %or
+; CHECK-LABEL: @safe_sdiv(
+; CHECK: %div = sdiv i64 %x, 2
; CHECK-NEXT: br label %for.body
define void @safe_sdiv(i64 %x, i64 %m, i64 %n, i32* %p, i64* %q) nounwind {
entry:
%and = and i64 %m, -3
- %or = or i64 %and, 1
br label %for.body
for.body: ; preds = %entry, %for.inc
%i.02 = phi i64 [ %inc, %for.inc ], [ 0, %entry ]
- %arrayidx = getelementptr inbounds i32* %p, i64 %i.02
- %0 = load i32* %arrayidx, align 4
+ %arrayidx = getelementptr inbounds i32, i32* %p, i64 %i.02
+ %0 = load i32, i32* %arrayidx, align 4
%tobool = icmp eq i32 %0, 0
br i1 %tobool, label %for.inc, label %if.then
if.then: ; preds = %for.body
- %div = sdiv i64 %x, %or
- %arrayidx1 = getelementptr inbounds i64* %q, i64 %i.02
+ %div = sdiv i64 %x, 2
+ %arrayidx1 = getelementptr inbounds i64, i64* %q, i64 %i.02
store i64 %div, i64* %arrayidx1, align 8
br label %for.inc
; SDiv is unsafe to speculate if the denominator is not known non-zero.
-; CHECK: @unsafe_sdiv_a
+; CHECK-LABEL: @unsafe_sdiv_a(
; CHECK-NOT: sdiv
; CHECK: for.body:
for.body: ; preds = %entry, %for.inc
%i.02 = phi i64 [ %inc, %for.inc ], [ 0, %entry ]
- %arrayidx = getelementptr inbounds i32* %p, i64 %i.02
- %0 = load i32* %arrayidx, align 4
+ %arrayidx = getelementptr inbounds i32, i32* %p, i64 %i.02
+ %0 = load i32, i32* %arrayidx, align 4
%tobool = icmp eq i32 %0, 0
br i1 %tobool, label %for.inc, label %if.then
if.then: ; preds = %for.body
%div = sdiv i64 %x, %or
- %arrayidx1 = getelementptr inbounds i64* %q, i64 %i.02
+ %arrayidx1 = getelementptr inbounds i64, i64* %q, i64 %i.02
store i64 %div, i64* %arrayidx1, align 8
br label %for.inc
; SDiv is unsafe to speculate if the denominator is not known to have a zero bit.
-; CHECK: @unsafe_sdiv_b
+; CHECK-LABEL: @unsafe_sdiv_b(
; CHECK-NOT: sdiv
; CHECK: for.body:
for.body: ; preds = %entry, %for.inc
%i.02 = phi i64 [ %inc, %for.inc ], [ 0, %entry ]
- %arrayidx = getelementptr inbounds i32* %p, i64 %i.02
- %0 = load i32* %arrayidx, align 4
+ %arrayidx = getelementptr inbounds i32, i32* %p, i64 %i.02
+ %0 = load i32, i32* %arrayidx, align 4
%tobool = icmp eq i32 %0, 0
br i1 %tobool, label %for.inc, label %if.then
if.then: ; preds = %for.body
%div = sdiv i64 %x, %and
- %arrayidx1 = getelementptr inbounds i64* %q, i64 %i.02
+ %arrayidx1 = getelementptr inbounds i64, i64* %q, i64 %i.02
store i64 %div, i64* %arrayidx1, align 8
br label %for.inc