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authorBernard Xiong <[email protected]>2020-06-18 10:05:24 +0800
committerGitHub <[email protected]>2020-06-18 10:05:24 +0800
commit2d2c20cd45b939de0fde27979bdf0075e9a0cf41 (patch)
tree48980590438bd9ab9abbf3d97b36af7c5013768c /libcpu
parentd7d6dbe774e6d497a235984b9247f1aa4a86d83a (diff)
parentd2eaa452d652c205aef16ee7385cb1a5d188c942 (diff)
Merge pull request #3700 from geniusgogo/master
[libcpu/arm/*/cpuport.c]fixed __rt_ffs bug on account of armclang LTO.
Diffstat (limited to 'libcpu')
-rw-r--r--libcpu/arm/cortex-m3/cpuport.c4
-rw-r--r--libcpu/arm/cortex-m33/cpuport.c4
-rw-r--r--libcpu/arm/cortex-m4/cpuport.c4
-rw-r--r--libcpu/arm/cortex-m7/cpuport.c4
4 files changed, 8 insertions, 8 deletions
diff --git a/libcpu/arm/cortex-m3/cpuport.c b/libcpu/arm/cortex-m3/cpuport.c
index d17d4fdf2e..d58782e2c5 100644
--- a/libcpu/arm/cortex-m3/cpuport.c
+++ b/libcpu/arm/cortex-m3/cpuport.c
@@ -388,13 +388,13 @@ int __rt_ffs(int value)
{
__asm volatile(
"CMP r0, #0x00 \n"
- "BEQ exit \n"
+ "BEQ 1f \n"
"RBIT r0, r0 \n"
"CLZ r0, r0 \n"
"ADDS r0, r0, #0x01 \n"
- "exit: \n"
+ "1: \n"
: "=r"(value)
: "r"(value)
diff --git a/libcpu/arm/cortex-m33/cpuport.c b/libcpu/arm/cortex-m33/cpuport.c
index 415f560911..a589ba3462 100644
--- a/libcpu/arm/cortex-m33/cpuport.c
+++ b/libcpu/arm/cortex-m33/cpuport.c
@@ -475,13 +475,13 @@ int __rt_ffs(int value)
{
__asm volatile(
"CMP r0, #0x00 \n"
- "BEQ exit \n"
+ "BEQ 1f \n"
"RBIT r0, r0 \n"
"CLZ r0, r0 \n"
"ADDS r0, r0, #0x01 \n"
- "exit: \n"
+ "1: \n"
"BX lr \n"
: "=r"(value)
diff --git a/libcpu/arm/cortex-m4/cpuport.c b/libcpu/arm/cortex-m4/cpuport.c
index f556ba0c26..dc8a9aab59 100644
--- a/libcpu/arm/cortex-m4/cpuport.c
+++ b/libcpu/arm/cortex-m4/cpuport.c
@@ -472,13 +472,13 @@ int __rt_ffs(int value)
{
__asm volatile(
"CMP r0, #0x00 \n"
- "BEQ exit \n"
+ "BEQ 1f \n"
"RBIT r0, r0 \n"
"CLZ r0, r0 \n"
"ADDS r0, r0, #0x01 \n"
- "exit: \n"
+ "1: \n"
: "=r"(value)
: "r"(value)
diff --git a/libcpu/arm/cortex-m7/cpuport.c b/libcpu/arm/cortex-m7/cpuport.c
index c22242f140..e701a52307 100644
--- a/libcpu/arm/cortex-m7/cpuport.c
+++ b/libcpu/arm/cortex-m7/cpuport.c
@@ -472,13 +472,13 @@ int __rt_ffs(int value)
{
__asm volatile(
"CMP r0, #0x00 \n"
- "BEQ exit \n"
+ "BEQ 1f \n"
"RBIT r0, r0 \n"
"CLZ r0, r0 \n"
"ADDS r0, r0, #0x01 \n"
- "exit: \n"
+ "1: \n"
: "=r"(value)
: "r"(value)