You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
65 lines
1.9 KiB
65 lines
1.9 KiB
; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
|
|
;
|
|
; CHECK: Function: f_no_fast_math
|
|
; CHECK: Reduction Type: NONE
|
|
; CHECK: Function: f_fast_math
|
|
; CHECK: Reduction Type: +
|
|
;
|
|
; void f(float *sum) {
|
|
; for (int i = 0; i < 100; i++)
|
|
; *sum += 3.41 * i;
|
|
; }
|
|
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
|
|
|
|
define void @f_no_fast_math(float* %sum) {
|
|
entry:
|
|
br label %for.cond
|
|
|
|
for.cond: ; preds = %for.inc, %entry
|
|
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
|
|
%exitcond = icmp ne i32 %i.0, 100
|
|
br i1 %exitcond, label %for.body, label %for.end
|
|
|
|
for.body: ; preds = %for.cond
|
|
%conv = sitofp i32 %i.0 to float
|
|
%pi = fptrunc double 3.41 to float
|
|
%mul = fmul float %conv, %pi
|
|
%tmp = load float, float* %sum, align 4
|
|
%add = fadd float %tmp, %mul
|
|
store float %add, float* %sum, align 4
|
|
br label %for.inc
|
|
|
|
for.inc: ; preds = %for.body
|
|
%inc = add nsw i32 %i.0, 1
|
|
br label %for.cond
|
|
|
|
for.end: ; preds = %for.cond
|
|
ret void
|
|
}
|
|
|
|
define void @f_fast_math(float* %sum) {
|
|
entry:
|
|
br label %for.cond
|
|
|
|
for.cond: ; preds = %for.inc, %entry
|
|
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
|
|
%exitcond = icmp ne i32 %i.0, 100
|
|
br i1 %exitcond, label %for.body, label %for.end
|
|
|
|
for.body: ; preds = %for.cond
|
|
%conv = sitofp i32 %i.0 to float
|
|
%pi = fptrunc double 3.41 to float
|
|
%mul = fmul fast float %conv, %pi
|
|
%tmp = load float, float* %sum, align 4
|
|
%add = fadd fast float %tmp, %mul
|
|
store float %add, float* %sum, align 4
|
|
br label %for.inc
|
|
|
|
for.inc: ; preds = %for.body
|
|
%inc = add nsw i32 %i.0, 1
|
|
br label %for.cond
|
|
|
|
for.end: ; preds = %for.cond
|
|
ret void
|
|
}
|