Hi,
As discussed in the PR, the new cdce3.c test fails on
arm-linux-gnueabi, and passes on arm-linux-gnueabihf.
On arm-linux-gnueabi, the generated code is:
.arm
.fpu softvfp
.type foo, %function
foo:
b sqrtf
on arm-liunx-gnueabihf, it is:
.arm
.fpu neon
.type foo, %function
foo:
vcmp.f32 s0, #0
vmrs APSR_nzcv, FPSCR
vmov.f32 s15, s0
bmi .L10
vsqrt.f32 s0, s15
bx lr
.L10:
b sqrtf
Actually both generate a tail-call, but only the latter says "function
call is shrink-wrapped into error conditions." in the dumps.
According to what JunMa says in the PR, it seems we want to restrict
this testcase to hard-float cases, so that's what this small patch
does.
OK?
Christophe
diff --git a/gcc/testsuite/gcc.dg/cdce3.c b/gcc/testsuite/gcc.dg/cdce3.c
index 8a74379..7e85d8a 100644
--- a/gcc/testsuite/gcc.dg/cdce3.c
+++ b/gcc/testsuite/gcc.dg/cdce3.c
@@ -1,6 +1,7 @@
/* { dg-do compile } */
+/* { dg-require-effective-target hard_float } */
/* { dg-options "-O2 -fmath-errno -fdump-tree-cdce-details
-fdump-tree-optimized" } */
-/* { dg-final { scan-tree-dump "cdce3.c:9: \[^\n\r]* function call is
shrink-wrapped into error conditions\." "cdce" } } */
+/* { dg-final { scan-tree-dump "cdce3.c:10: \[^\n\r]* function call is
shrink-wrapped into error conditions\." "cdce" } } */
/* { dg-final { scan-tree-dump "sqrtf \\(\[^\n\r]*\\); \\\[tail call\\\]"
"optimized" } } */
float sqrtf (float);
2019-05-20 Christophe Lyon <christophe.l...@linaro.org>
PR tree-optimization/90106
* gcc.dg/cdce3.c: Add hard_float effective target.
