diff options
Diffstat (limited to 'contrib/compiler-rt/lib/builtins/arm/comparesf2.S')
| -rw-r--r-- | contrib/compiler-rt/lib/builtins/arm/comparesf2.S | 38 |
1 files changed, 26 insertions, 12 deletions
diff --git a/contrib/compiler-rt/lib/builtins/arm/comparesf2.S b/contrib/compiler-rt/lib/builtins/arm/comparesf2.S index a5b7e36487d6..74ff0d1f32b2 100644 --- a/contrib/compiler-rt/lib/builtins/arm/comparesf2.S +++ b/contrib/compiler-rt/lib/builtins/arm/comparesf2.S @@ -38,15 +38,20 @@ //===----------------------------------------------------------------------===// #include "../assembly.h" -.syntax unified -#if __ARM_ARCH_ISA_THUMB == 2 -.thumb + .syntax unified + .text +#if defined(USE_THUMB_PROLOGUE) + .thumb #endif @ int __eqsf2(float a, float b) .p2align 2 +#if defined(USE_THUMB_PROLOGUE) +DEFINE_COMPILERRT_THUMB_FUNCTION(__eqsf2) +#else DEFINE_COMPILERRT_FUNCTION(__eqsf2) +#endif #if defined(COMPILER_RT_ARMHF_TARGET) vmov r0, s0 vmov r1, s1 @@ -67,7 +72,7 @@ DEFINE_COMPILERRT_FUNCTION(__eqsf2) // flag if both a and b are zero (of either sign). The shift of r3 doesn't // effect this at all, but it *does* make sure that the C flag is clear for // the subsequent operations. -#if __ARM_ARCH_ISA_THUMB == 1 +#if defined(USE_THUMB_1) lsrs r6, r3, #1 orrs r6, r2, r6 #else @@ -75,7 +80,7 @@ DEFINE_COMPILERRT_FUNCTION(__eqsf2) #endif // Next, we check if a and b have the same or different signs. If they have // opposite signs, this eor will set the N flag. -#if __ARM_ARCH_ISA_THUMB == 1 +#if defined(USE_THUMB_1) beq 1f movs r6, r0 eors r6, r1 @@ -89,7 +94,7 @@ DEFINE_COMPILERRT_FUNCTION(__eqsf2) // ignoring NaNs for now), this subtract will zero out r0. If they have the // same sign, the flags are updated as they would be for a comparison of the // absolute values of a and b. -#if __ARM_ARCH_ISA_THUMB == 1 +#if defined(USE_THUMB_1) bmi 1f subs r0, r2, r3 1: @@ -108,7 +113,7 @@ DEFINE_COMPILERRT_FUNCTION(__eqsf2) // still clear from the shift argument in orrs; if a is positive and b // negative, this places 0 in r0; if a is negative and b positive, -1 is // placed in r0. -#if __ARM_ARCH_ISA_THUMB == 1 +#if defined(USE_THUMB_1) bhs 1f // Here if a and b have the same sign and absA < absB, the result is thus // b < 0 ? 1 : -1. Same if a and b have the opposite sign (ignoring Nan). @@ -127,7 +132,7 @@ DEFINE_COMPILERRT_FUNCTION(__eqsf2) // the sign of b in r0. Thus, if both are negative and a < b, -1 is placed // in r0, which is the desired result. Conversely, if both are positive // and a > b, zero is placed in r0. -#if __ARM_ARCH_ISA_THUMB == 1 +#if defined(USE_THUMB_1) bls 1f // Here both have the same sign and absA > absB. movs r0, #1 @@ -145,14 +150,14 @@ DEFINE_COMPILERRT_FUNCTION(__eqsf2) // If a == b, then the Z flag is set, so we can get the correct final value // into r0 by simply or'ing with 1 if Z is clear. // For Thumb-1, r0 contains -1 if a < b, 0 if a > b and 0 if a == b. -#if __ARM_ARCH_ISA_THUMB != 1 +#if defined(USE_THUMB_1) it ne orrne r0, r0, #1 #endif // Finally, we need to deal with NaNs. If either argument is NaN, replace // the value in r0 with 1. -#if __ARM_ARCH_ISA_THUMB == 1 +#if defined(USE_THUMB_1) LOCAL_LABEL(CHECK_NAN): movs r6, #0xff lsls r6, #24 @@ -180,7 +185,11 @@ DEFINE_COMPILERRT_FUNCTION_ALIAS(__nesf2, __eqsf2) @ int __gtsf2(float a, float b) .p2align 2 +#if defined(USE_THUMB) +DEFINE_COMPILERRT_THUMB_FUNCTION(__gtsf2) +#else DEFINE_COMPILERRT_FUNCTION(__gtsf2) +#endif // Identical to the preceding except in that we return -1 for NaN values. // Given that the two paths share so much code, one might be tempted to // unify them; however, the extra code needed to do so makes the code size @@ -189,7 +198,7 @@ DEFINE_COMPILERRT_FUNCTION(__gtsf2) vmov r0, s0 vmov r1, s1 #endif -#if __ARM_ARCH_ISA_THUMB == 1 +#if defined(USE_THUMB_1) push {r6, lr} lsls r2, r0, #1 lsls r3, r1, #1 @@ -254,7 +263,12 @@ DEFINE_COMPILERRT_FUNCTION_ALIAS(__gesf2, __gtsf2) @ int __unordsf2(float a, float b) .p2align 2 +#if defined(USE_THUMB) +DEFINE_COMPILERRT_THUMB_FUNCTION(__unordsf2) +#else DEFINE_COMPILERRT_FUNCTION(__unordsf2) +#endif + #if defined(COMPILER_RT_ARMHF_TARGET) vmov r0, s0 vmov r1, s1 @@ -263,7 +277,7 @@ DEFINE_COMPILERRT_FUNCTION(__unordsf2) lsls r2, r0, #1 lsls r3, r1, #1 movs r0, #0 -#if __ARM_ARCH_ISA_THUMB == 1 +#if defined(USE_THUMB_1) movs r1, #0xff lsls r1, #24 cmp r2, r1 |