1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
| ; RUN: opt < %s -S -inline -inline-threshold=20 | FileCheck %s
; RUN: opt < %s -S -passes='cgscc(inline)' -inline-threshold=20 | FileCheck %s
; Check that we don't drop FastMathFlag when estimating inlining profitability.
;
; In this test we should inline 'foo' to 'boo', because it'll fold to a
; constant.
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
define float @foo(float* %a, float %b) {
entry:
%a0 = load float, float* %a, align 4
%mul = fmul fast float %a0, %b
%tobool = fcmp une float %mul, 0.000000e+00
br i1 %tobool, label %if.then, label %if.end
if.then: ; preds = %entry
%a1 = load float, float* %a, align 8
%arrayidx1 = getelementptr inbounds float, float* %a, i64 1
%a2 = load float, float* %arrayidx1, align 4
%add = fadd fast float %a1, %a2
br label %if.end
if.end: ; preds = %if.then, %entry
%storemerge = phi float [ %add, %if.then ], [ 1.000000e+00, %entry ]
ret float %storemerge
}
; CHECK-LABEL: @boo
; CHECK-NOT: call float @foo
define float @boo(float* %a) {
entry:
%call = call float @foo(float* %a, float 0.000000e+00)
ret float %call
}
|