Author: lerochris Date: Wed Jun 8 09:46:05 2016 New Revision: 272148 URL: http://llvm.org/viewvc/llvm-project?rev=272148&view=rev Log: [Sparc] Complex return value ABI compliance.
According to the Sparc V8 ABI, complex numbers should be passed and returned as pairs of registers: https://docs.oracle.com/cd/E26502_01/html/E28387/gentextid-2734.html This fix ensures this is the case. Without this, complex numbers are returned as a struct of two floats, which breaks the ABI rules. Differential Review: http://reviews.llvm.org/D20955 Added: cfe/trunk/test/CodeGen/sparcv8-abi.c (with props) Added: cfe/trunk/test/CodeGen/sparcv8-abi.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/sparcv8-abi.c?rev=272148&view=auto ============================================================================== --- cfe/trunk/test/CodeGen/sparcv8-abi.c (added) +++ cfe/trunk/test/CodeGen/sparcv8-abi.c Wed Jun 8 09:46:05 2016 @@ -0,0 +1,19 @@ +// RUN: %clang_cc1 -triple sparc-unknown-unknown -emit-llvm %s -o - | FileCheck %s + +// CHECK-LABEL: define { float, float } @p({ float, float }* byval align 4 %a, { float, float }* byval align 4 %b) #0 { +float __complex__ +p (float __complex__ a, float __complex__ b) +{ +} + +// CHECK-LABEL: define { double, double } @q({ double, double }* byval align 8 %a, { double, double }* byval align 8 %b) #0 { +double __complex__ +q (double __complex__ a, double __complex__ b) +{ +} + +// CHECK-LABEL: define { i64, i64 } @r({ i64, i64 }* byval align 8 %a, { i64, i64 }* byval align 8 %b) #0 { +long long __complex__ +r (long long __complex__ a, long long __complex__ b) +{ +} Propchange: cfe/trunk/test/CodeGen/sparcv8-abi.c ------------------------------------------------------------------------------ svn:eol-style = native _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits