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| author | Oliver Stannard <oliver.stannard@arm.com> | 2014-02-07 11:19:53 +0000 |
|---|---|---|
| committer | Oliver Stannard <oliver.stannard@arm.com> | 2014-02-07 11:19:53 +0000 |
| commit | c8f5d438208fefc4f45034ba748861cf68a5911d (patch) | |
| tree | cc3664226036f477c39c57b6f85c6acf023926fc /lib | |
| parent | fba9c104b9f2b3bf406631ef988f94affa935718 (diff) | |
| download | llvm-c8f5d438208fefc4f45034ba748861cf68a5911d.tar.gz llvm-c8f5d438208fefc4f45034ba748861cf68a5911d.tar.bz2 llvm-c8f5d438208fefc4f45034ba748861cf68a5911d.tar.xz | |
LLVM-1163: AAPCS-VFP violation when CPRC allocated to stack
According to the AAPCS, when a CPRC is allocated to the stack, all other
VFP registers should be marked as unavailable.
I have also modified the rules for allocating non-CPRCs to the stack, to make
it more explicit that all GPRs must be made unavailable. I cannot think of a
case where the old version would produce incorrect answers, so there is no test
for this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200970 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/ARM/ARMCallingConv.td | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/lib/Target/ARM/ARMCallingConv.td b/lib/Target/ARM/ARMCallingConv.td index 9bea4b2d68..9ca2e465d8 100644 --- a/lib/Target/ARM/ARMCallingConv.td +++ b/lib/Target/ARM/ARMCallingConv.td @@ -114,10 +114,11 @@ def CC_ARM_AAPCS_Common : CallingConv<[ CCIfType<[i32], CCIf<"ArgFlags.getOrigAlign() != 8", CCAssignToReg<[R0, R1, R2, R3]>>>, - CCIfType<[i32], CCIfAlign<"8", CCAssignToStackWithShadow<4, 8, R3>>>, - CCIfType<[i32, f32], CCAssignToStack<4, 4>>, - CCIfType<[f64], CCAssignToStack<8, 8>>, - CCIfType<[v2f64], CCAssignToStack<16, 8>> + CCIfType<[i32], CCIfAlign<"8", CCAssignToStackWithShadow<4, 8, [R0, R1, R2, R3]>>>, + CCIfType<[i32], CCAssignToStackWithShadow<4, 4, [R0, R1, R2, R3]>>, + CCIfType<[f32], CCAssignToStackWithShadow<4, 4, [Q0, Q1, Q2, Q3]>>, + CCIfType<[f64], CCAssignToStackWithShadow<8, 8, [Q0, Q1, Q2, Q3]>>, + CCIfType<[v2f64], CCAssignToStackWithShadow<16, 8, [Q0, Q1, Q2, Q3]>> ]>; def RetCC_ARM_AAPCS_Common : CallingConv<[ |