diff options
| author | Martin Storsjö <martin@martin.st> | 2019-11-26 22:41:40 +0200 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2019-11-27 10:44:42 +0200 |
| commit | 943513b79929fba1a9dccdf81cb68a41ce29cd03 (patch) | |
| tree | 244f8ba550bd47d75d2e626a2d5a3d74197a3639 /llvm/lib/Target/X86 | |
| parent | 344bdeb797b31bb99158010f255a7219fe77e2ec (diff) | |
| download | bcm5719-llvm-943513b79929fba1a9dccdf81cb68a41ce29cd03.tar.gz bcm5719-llvm-943513b79929fba1a9dccdf81cb68a41ce29cd03.zip | |
[X86] [Win64] Avoid truncating large (> 32 bit) stack allocations
This fixes PR44129, which was broken in a7adc3185b (in 7.0.0
and newer).
Differential Revision: https://reviews.llvm.org/D70741
Diffstat (limited to 'llvm/lib/Target/X86')
| -rw-r--r-- | llvm/lib/Target/X86/X86FrameLowering.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86FrameLowering.cpp b/llvm/lib/Target/X86/X86FrameLowering.cpp index 3374cd054a6..799c1f5d128 100644 --- a/llvm/lib/Target/X86/X86FrameLowering.cpp +++ b/llvm/lib/Target/X86/X86FrameLowering.cpp @@ -1261,7 +1261,7 @@ void X86FrameLowering::emitPrologue(MachineFunction &MF, if (Is64Bit) { // Handle the 64-bit Windows ABI case where we need to call __chkstk. // Function prologue is responsible for adjusting the stack pointer. - int Alloc = isEAXAlive ? NumBytes - 8 : NumBytes; + int64_t Alloc = isEAXAlive ? NumBytes - 8 : NumBytes; if (isUInt<32>(Alloc)) { BuildMI(MBB, MBBI, DL, TII.get(X86::MOV32ri), X86::EAX) .addImm(Alloc) |
