Merging r311555:
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r311555 | oleg | 2017-08-23 07:26:31 -0700 (Wed, 23 Aug 2017) | 14 lines
[ARM][Compiler-rt] Fix AEABI builtins to correctly pass arguments to non-AEABI functions on HF targets
Summary:
This is a patch for PR34167.
On HF targets functions like `__{eq,lt,le,ge,gt}df2` and `__{eq,lt,le,ge,gt}sf2` expect their arguments to be passed in d/s registers, while some of the AEABI builtins pass them in r registers.
Reviewers: compnerd, peter.smith, asl
Reviewed By: peter.smith, asl
Subscribers: peter.smith, aemerson, dberris, javed.absar, llvm-commits, asl, kristof.beyls
Differential Revision: https://reviews.llvm.org/D36675
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/branches/release_50@311606 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/builtins/arm/aeabi_dcmp.S b/lib/builtins/arm/aeabi_dcmp.S
index 51539c0..9fa78b4 100644
--- a/lib/builtins/arm/aeabi_dcmp.S
+++ b/lib/builtins/arm/aeabi_dcmp.S
@@ -18,11 +18,20 @@
// }
// }
+#if defined(COMPILER_RT_ARMHF_TARGET)
+# define CONVERT_DCMP_ARGS_TO_DF2_ARGS \
+ vmov d0, r0, r1 SEPARATOR \
+ vmov d1, r2, r3
+#else
+# define CONVERT_DCMP_ARGS_TO_DF2_ARGS
+#endif
+
#define DEFINE_AEABI_DCMP(cond) \
.syntax unified SEPARATOR \
.p2align 2 SEPARATOR \
DEFINE_COMPILERRT_FUNCTION(__aeabi_dcmp ## cond) \
push { r4, lr } SEPARATOR \
+ CONVERT_DCMP_ARGS_TO_DF2_ARGS SEPARATOR \
bl SYMBOL_NAME(__ ## cond ## df2) SEPARATOR \
cmp r0, #0 SEPARATOR \
b ## cond 1f SEPARATOR \
diff --git a/lib/builtins/arm/aeabi_fcmp.S b/lib/builtins/arm/aeabi_fcmp.S
index 8e7774b..ea5b96c 100644
--- a/lib/builtins/arm/aeabi_fcmp.S
+++ b/lib/builtins/arm/aeabi_fcmp.S
@@ -18,11 +18,20 @@
// }
// }
+#if defined(COMPILER_RT_ARMHF_TARGET)
+# define CONVERT_FCMP_ARGS_TO_SF2_ARGS \
+ vmov s0, r0 SEPARATOR \
+ vmov s1, r1
+#else
+# define CONVERT_FCMP_ARGS_TO_SF2_ARGS
+#endif
+
#define DEFINE_AEABI_FCMP(cond) \
.syntax unified SEPARATOR \
.p2align 2 SEPARATOR \
DEFINE_COMPILERRT_FUNCTION(__aeabi_fcmp ## cond) \
push { r4, lr } SEPARATOR \
+ CONVERT_FCMP_ARGS_TO_SF2_ARGS SEPARATOR \
bl SYMBOL_NAME(__ ## cond ## sf2) SEPARATOR \
cmp r0, #0 SEPARATOR \
b ## cond 1f SEPARATOR \
