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Fix pr4058 and pr4059. Do not split i64 or double arguments between r3 and

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the stack.  Patch by Sandeep Patel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72106 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bob Wilson 2009-05-19 10:02:36 +00:00
parent 224c244f56
commit 04746eae49
3 changed files with 22 additions and 1 deletions
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5
lib/Target/ARM/ARMCallingConv.td
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@ -51,11 +51,14 @@ def CC_ARM_AAPCS : CallingConv<[
// i64/f64 is passed in even pairs of GPRs
// i64 is 8-aligned i32 here, so we may need to eat R1 as a pad register
// (and the same is true for f64 if VFP is not enabled)
CCIfType<[i32], CCIfAlign<"8", CCAssignToRegWithShadow<[R0, R2], [R0, R1]>>>,
CCIfType<[f64], CCCustom<"CC_ARM_AAPCS_Custom_f64">>,
CCIfType<[f32], CCBitConvertToType<i32>>,
CCIfType<[i32], CCAssignToReg<[R0, R1, R2, R3]>>,
CCIfType<[i32], CCIf<"State.getNextStackOffset() == 0 &&"
"ArgFlags.getOrigAlign() != 8",
CCAssignToReg<[R0, R1, R2, R3]>>>,
CCIfType<[i32], CCAssignToStack<4, 4>>,
CCIfType<[f64], CCAssignToStack<8, 8>>

9
test/CodeGen/ARM/arguments-nosplit-double.ll Normal file
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@ -0,0 +1,9 @@
; RUN: llvm-as < %s | llc -mtriple=arm-linux-gnueabi | not grep r3
; PR4059
define i32 @f(i64 %z, i32 %a, double %b) {
%tmp = call i32 @g(double %b)
ret i32 %tmp
}
declare i32 @g(double)

9
test/CodeGen/ARM/arguments-nosplit-i64.ll Normal file
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@ -0,0 +1,9 @@
; RUN: llvm-as < %s | llc -mtriple=arm-linux-gnueabi | not grep r3
; PR4058
define i32 @f(i64 %z, i32 %a, i64 %b) {
%tmp = call i32 @g(i64 %b)
ret i32 %tmp
}
declare i32 @g(i64)