37 lines
1.1 KiB
LLVM
37 lines
1.1 KiB
LLVM
; RUN: llc < %s -widen-vmovs -mcpu=cortex-a8 -verify-machineinstrs -disable-code-place | FileCheck %s
|
|
target triple = "thumbv7-apple-ios"
|
|
|
|
; The 1.0e+10 constant is loaded from the constant pool and kept in a register.
|
|
; CHECK: %entry
|
|
; CHECK: vldr s
|
|
; The float loop variable is initialized with a vmovs from the constant register.
|
|
; The vmovs is first widened to a vmovd, and then converted to a vorr because of the v2f32 vadd.f32.
|
|
; CHECK: vorr [[DL:d[0-9]+]], [[DN:d[0-9]+]]
|
|
; CHECK: , [[DN]]
|
|
; CHECK: %for.body.i
|
|
; CHECK: vadd.f32 [[DL]], [[DL]], [[DN]]
|
|
; CHECK: %rInnerproduct.exit
|
|
;
|
|
; This test is verifying:
|
|
; - The VMOVS widening is happening.
|
|
; - Register liveness is verified.
|
|
; - The execution domain switch to vorr works across basic blocks.
|
|
|
|
define void @Mm() nounwind {
|
|
entry:
|
|
br label %for.body4
|
|
|
|
for.body4:
|
|
br label %for.body.i
|
|
|
|
for.body.i:
|
|
%tmp3.i = phi float [ 1.000000e+10, %for.body4 ], [ %add.i, %for.body.i ]
|
|
%add.i = fadd float %tmp3.i, 1.000000e+10
|
|
%exitcond.i = icmp eq i32 undef, 41
|
|
br i1 %exitcond.i, label %rInnerproduct.exit, label %for.body.i
|
|
|
|
rInnerproduct.exit:
|
|
store float %add.i, float* undef, align 4
|
|
br label %for.body4
|
|
}
|