mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-30 15:32:52 +01:00
0b854b8c04
Although you can't generate this from C on PPC64, if you have a loop using a 64-bit counter on PPC32 then you can't form a CTR-based loop for it. This had been cauing the PPCCTRLoops pass to assert. Thanks to Joerg Sonnenberger for providing a test case! llvm-svn: 185361
24 lines
719 B
LLVM
24 lines
719 B
LLVM
; RUN: llc -mcpu=ppc32 < %s
|
|
target datalayout = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32"
|
|
target triple = "powerpc-unknown-linux-gnu"
|
|
|
|
define void @fn1() {
|
|
entry:
|
|
br i1 undef, label %for.end, label %for.body
|
|
|
|
for.body: ; preds = %for.body, %entry
|
|
%inc3 = phi i64 [ %inc, %for.body ], [ undef, %entry ]
|
|
%inc = add nsw i64 %inc3, 1
|
|
%tobool = icmp eq i64 %inc, 0
|
|
br i1 %tobool, label %for.end, label %for.body
|
|
|
|
for.end: ; preds = %for.body, %entry
|
|
ret void
|
|
}
|
|
|
|
; On PPC32, CTR is also 32 bits, and so cannot hold a 64-bit count.
|
|
; CHECK: @fn1
|
|
; CHECK-NOT: mtctr
|
|
; CHECK: blr
|
|
|