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| author | Bill Schmidt <wschmidt@linux.vnet.ibm.com> | 2013-01-17 17:45:19 +0000 |
|---|---|---|
| committer | Bill Schmidt <wschmidt@linux.vnet.ibm.com> | 2013-01-17 17:45:19 +0000 |
| commit | 792b1233384da442e6c75cf580bd1927123a56f3 (patch) | |
| tree | 4f3862cab16076f49d17741d5d75ed4b82038acf | |
| parent | 11af9a873f9e1409a422ab31e22729368805afaf (diff) | |
| download | llvm-792b1233384da442e6c75cf580bd1927123a56f3.tar.gz llvm-792b1233384da442e6c75cf580bd1927123a56f3.tar.bz2 llvm-792b1233384da442e6c75cf580bd1927123a56f3.tar.xz | |
This patch fixes the PPC calling convention to handle returns of
_Complex float and _Complex long double, by simply increasing the
number of floating point registers available for return values.
The test case verifies that the correct registers are loaded.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172733 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/PowerPC/PPCCallingConv.td | 4 | ||||
| -rw-r--r-- | test/CodeGen/PowerPC/complex-return.ll | 55 |
2 files changed, 57 insertions, 2 deletions
diff --git a/lib/Target/PowerPC/PPCCallingConv.td b/lib/Target/PowerPC/PPCCallingConv.td index 3f87e883b1..120e049f05 100644 --- a/lib/Target/PowerPC/PPCCallingConv.td +++ b/lib/Target/PowerPC/PPCCallingConv.td @@ -28,8 +28,8 @@ def RetCC_PPC : CallingConv<[ CCIfType<[i32], CCAssignToReg<[R3, R4, R5, R6, R7, R8, R9, R10]>>, CCIfType<[i64], CCAssignToReg<[X3, X4, X5, X6]>>, - CCIfType<[f32], CCAssignToReg<[F1]>>, - CCIfType<[f64], CCAssignToReg<[F1, F2]>>, + CCIfType<[f32], CCAssignToReg<[F1, F2]>>, + CCIfType<[f64], CCAssignToReg<[F1, F2, F3, F4]>>, // Vector types are always returned in V2. CCIfType<[v16i8, v8i16, v4i32, v4f32], CCAssignToReg<[V2]>> diff --git a/test/CodeGen/PowerPC/complex-return.ll b/test/CodeGen/PowerPC/complex-return.ll new file mode 100644 index 0000000000..f12152ff0f --- /dev/null +++ b/test/CodeGen/PowerPC/complex-return.ll @@ -0,0 +1,55 @@ +; RUN: llc -mcpu=pwr7 -O0 < %s | FileCheck %s + +target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64" +target triple = "powerpc64-unknown-linux-gnu" + +define { ppc_fp128, ppc_fp128 } @foo() nounwind { +entry: + %retval = alloca { ppc_fp128, ppc_fp128 }, align 16 + %x = alloca { ppc_fp128, ppc_fp128 }, align 16 + %real = getelementptr inbounds { ppc_fp128, ppc_fp128 }* %x, i32 0, i32 0 + %imag = getelementptr inbounds { ppc_fp128, ppc_fp128 }* %x, i32 0, i32 1 + store ppc_fp128 0xM400C0000000000000000000000000000, ppc_fp128* %real + store ppc_fp128 0xMC00547AE147AE1483CA47AE147AE147A, ppc_fp128* %imag + %x.realp = getelementptr inbounds { ppc_fp128, ppc_fp128 }* %x, i32 0, i32 0 + %x.real = load ppc_fp128* %x.realp + %x.imagp = getelementptr inbounds { ppc_fp128, ppc_fp128 }* %x, i32 0, i32 1 + %x.imag = load ppc_fp128* %x.imagp + %real1 = getelementptr inbounds { ppc_fp128, ppc_fp128 }* %retval, i32 0, i32 0 + %imag2 = getelementptr inbounds { ppc_fp128, ppc_fp128 }* %retval, i32 0, i32 1 + store ppc_fp128 %x.real, ppc_fp128* %real1 + store ppc_fp128 %x.imag, ppc_fp128* %imag2 + %0 = load { ppc_fp128, ppc_fp128 }* %retval + ret { ppc_fp128, ppc_fp128 } %0 +} + +; CHECK: foo: +; CHECK: lfd 3 +; CHECK: lfd 4 +; CHECK: lfd 2 +; CHECK: lfd 1 + +define { float, float } @oof() nounwind { +entry: + %retval = alloca { float, float }, align 4 + %x = alloca { float, float }, align 4 + %real = getelementptr inbounds { float, float }* %x, i32 0, i32 0 + %imag = getelementptr inbounds { float, float }* %x, i32 0, i32 1 + store float 3.500000e+00, float* %real + store float 0xC00547AE20000000, float* %imag + %x.realp = getelementptr inbounds { float, float }* %x, i32 0, i32 0 + %x.real = load float* %x.realp + %x.imagp = getelementptr inbounds { float, float }* %x, i32 0, i32 1 + %x.imag = load float* %x.imagp + %real1 = getelementptr inbounds { float, float }* %retval, i32 0, i32 0 + %imag2 = getelementptr inbounds { float, float }* %retval, i32 0, i32 1 + store float %x.real, float* %real1 + store float %x.imag, float* %imag2 + %0 = load { float, float }* %retval + ret { float, float } %0 +} + +; CHECK: oof: +; CHECK: lfs 2 +; CHECK: lfs 1 + |