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llvm-project/clang/test/CodeGen/ppc64-extend.c

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On PowerPC64, integer arguments and return values need to be sign- or zero-extended to 64 bits. This information is currently provided to the back end by setting "signext" or "zeroext" attributes. However, this is done only for integer types *smaller* than i32, not for i32 itself. This causes clang to generate code violating the ABI, which results in a failure of the tramp3d-v4 test case (due to calling a system library routine without ABI-required extension). This patch implements custom versions of classifyArgumentType and classifyReturnType for PPC64_SVR4_ABIInfo, which are the same as the default versions except that they also classify "int" and "unsigned int" as types needing extending. This fixed tramp3d-v4 on PowerPC64. llvm-svn: 167393
2012-11-06 03:13:42 +08:00
// REQUIRES: ppc64-registered-target
Don't pass -O0 to clang_cc1, it is the default. llvm-svn: 189910
2013-09-04 12:12:25 +08:00
// RUN: %clang_cc1 -triple powerpc64-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s
On PowerPC64, integer arguments and return values need to be sign- or zero-extended to 64 bits. This information is currently provided to the back end by setting "signext" or "zeroext" attributes. However, this is done only for integer types *smaller* than i32, not for i32 itself. This causes clang to generate code violating the ABI, which results in a failure of the tramp3d-v4 test case (due to calling a system library routine without ABI-required extension). This patch implements custom versions of classifyArgumentType and classifyReturnType for PPC64_SVR4_ABIInfo, which are the same as the default versions except that they also classify "int" and "unsigned int" as types needing extending. This fixed tramp3d-v4 on PowerPC64. llvm-svn: 167393
2012-11-06 03:13:42 +08:00
void f1(int x) { return; }
Fix testcases to not rely upon target-* attributes. llvm-svn: 176135
2013-02-27 07:08:48 +08:00
// CHECK: define void @f1(i32 signext %x) [[NUW:#[0-9]+]]
On PowerPC64, integer arguments and return values need to be sign- or zero-extended to 64 bits. This information is currently provided to the back end by setting "signext" or "zeroext" attributes. However, this is done only for integer types *smaller* than i32, not for i32 itself. This causes clang to generate code violating the ABI, which results in a failure of the tramp3d-v4 test case (due to calling a system library routine without ABI-required extension). This patch implements custom versions of classifyArgumentType and classifyReturnType for PPC64_SVR4_ABIInfo, which are the same as the default versions except that they also classify "int" and "unsigned int" as types needing extending. This fixed tramp3d-v4 on PowerPC64. llvm-svn: 167393
2012-11-06 03:13:42 +08:00
void f2(unsigned int x) { return; }
Fix testcases to not rely upon target-* attributes. llvm-svn: 176135
2013-02-27 07:08:48 +08:00
// CHECK: define void @f2(i32 zeroext %x) [[NUW]]
On PowerPC64, integer arguments and return values need to be sign- or zero-extended to 64 bits. This information is currently provided to the back end by setting "signext" or "zeroext" attributes. However, this is done only for integer types *smaller* than i32, not for i32 itself. This causes clang to generate code violating the ABI, which results in a failure of the tramp3d-v4 test case (due to calling a system library routine without ABI-required extension). This patch implements custom versions of classifyArgumentType and classifyReturnType for PPC64_SVR4_ABIInfo, which are the same as the default versions except that they also classify "int" and "unsigned int" as types needing extending. This fixed tramp3d-v4 on PowerPC64. llvm-svn: 167393
2012-11-06 03:13:42 +08:00
int f3(void) { return 0; }
Fix testcases to not rely upon target-* attributes. llvm-svn: 176135
2013-02-27 07:08:48 +08:00
// CHECK: define signext i32 @f3() [[NUW]]
On PowerPC64, integer arguments and return values need to be sign- or zero-extended to 64 bits. This information is currently provided to the back end by setting "signext" or "zeroext" attributes. However, this is done only for integer types *smaller* than i32, not for i32 itself. This causes clang to generate code violating the ABI, which results in a failure of the tramp3d-v4 test case (due to calling a system library routine without ABI-required extension). This patch implements custom versions of classifyArgumentType and classifyReturnType for PPC64_SVR4_ABIInfo, which are the same as the default versions except that they also classify "int" and "unsigned int" as types needing extending. This fixed tramp3d-v4 on PowerPC64. llvm-svn: 167393
2012-11-06 03:13:42 +08:00
unsigned int f4(void) { return 0; }
Fix testcases to not rely upon target-* attributes. llvm-svn: 176135
2013-02-27 07:08:48 +08:00
// CHECK: define zeroext i32 @f4() [[NUW]]
On PowerPC64, integer arguments and return values need to be sign- or zero-extended to 64 bits. This information is currently provided to the back end by setting "signext" or "zeroext" attributes. However, this is done only for integer types *smaller* than i32, not for i32 itself. This causes clang to generate code violating the ABI, which results in a failure of the tramp3d-v4 test case (due to calling a system library routine without ABI-required extension). This patch implements custom versions of classifyArgumentType and classifyReturnType for PPC64_SVR4_ABIInfo, which are the same as the default versions except that they also classify "int" and "unsigned int" as types needing extending. This fixed tramp3d-v4 on PowerPC64. llvm-svn: 167393
2012-11-06 03:13:42 +08:00
Fix testcases to not rely upon target-* attributes. llvm-svn: 176135
2013-02-27 07:08:48 +08:00
// CHECK: attributes [[NUW]] = { nounwind{{.*}} }