llvm/test/CodeGen/ARM/ifcvt3.ll
Hans Wennborg defaf830f9 Re-commit r235560: Switch lowering: extract jump tables and bit tests before building binary tree (PR22262)
Third time's the charm. The previous commit was reverted as a
reverse for-loop in SelectionDAGBuilder::lowerWorkItem did 'I--'
on an iterator at the beginning of a vector, causing asserts
when using debugging iterators. This commit fixes that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235608 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-23 16:45:24 +00:00

33 lines
733 B
LLVM

; RUN: llc -mtriple=arm-eabi -mcpu=cortex-a8 %s -o - | FileCheck %s
; RUN: llc -mtriple=arm-eabi -mattr=+v4t %s -o - | FileCheck %s -check-prefix CHECK-V4-CMP
; RUN: llc -mtriple=arm-eabi -mattr=+v4t %s -o - | FileCheck %s -check-prefix CHECK-V4-BX
define i32 @t1(i32 %a, i32 %b, i32 %c, i32 %d) {
; CHECK-LABEL: t1:
; CHECK: cmp r2, #7
; CHECK: cmpne r2, #1
switch i32 %c, label %cond_next [
i32 1, label %cond_true
i32 7, label %cond_true
]
cond_true:
; CHECK: addne r0
; CHECK: bxne
%tmp12 = add i32 %a, 1
%tmp1518 = add i32 %tmp12, %b
ret i32 %tmp1518
cond_next:
%tmp15 = add i32 %b, %a
ret i32 %tmp15
}
; CHECK-V4-CMP: cmpne
; CHECK-V4-CMP-NOT: cmpne
; CHECK-V4-BX: bx
; CHECK-V4-BX: bx
; CHECK-V4-BX-NOT: bx