test/CodeGen/X86/SwitchLowering.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-- | FileCheck %s
; PR964

define i8* @FindChar(i8* %CurPtr) {
; CHECK-LABEL: FindChar:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    pushl %edi
; CHECK-NEXT:    .cfi_def_cfa_offset 8
; CHECK-NEXT:    pushl %esi
; CHECK-NEXT:    .cfi_def_cfa_offset 12
; CHECK-NEXT:    .cfi_offset %esi, -12
; CHECK-NEXT:    .cfi_offset %edi, -8
; CHECK-NEXT:    xorl %edi, %edi
; CHECK-NEXT:    movl {{[0-9]+}}(%esp), %esi
; CHECK-NEXT:    .p2align 4, 0x90
; CHECK-NEXT:  .LBB0_1: # %bb
; CHECK-NEXT:    # =>This Inner Loop Header: Depth=1
; CHECK-NEXT:    movzbl (%esi,%edi), %eax
; CHECK-NEXT:    incl %edi
; CHECK-NEXT:    cmpb $120, %al
; CHECK-NEXT:    je .LBB0_3
; CHECK-NEXT:  # %bb.2: # %bb
; CHECK-NEXT:    # in Loop: Header=BB0_1 Depth=1
; CHECK-NEXT:    testb %al, %al
; CHECK-NEXT:    jne .LBB0_1
; CHECK-NEXT:  .LBB0_3: # %bb7
; CHECK-NEXT:    movzbl %al, %eax
; CHECK-NEXT:    pushl %eax
; CHECK-NEXT:    .cfi_adjust_cfa_offset 4
; CHECK-NEXT:    calll foo
; CHECK-NEXT:    addl $4, %esp
; CHECK-NEXT:    .cfi_adjust_cfa_offset -4
; CHECK-NEXT:    addl %edi, %esi
; CHECK-NEXT:    movl %esi, %eax
; CHECK-NEXT:    popl %esi
; CHECK-NEXT:    .cfi_def_cfa_offset 8
; CHECK-NEXT:    popl %edi
; CHECK-NEXT:    .cfi_def_cfa_offset 4
; CHECK-NEXT:    retl
entry:
        br label %bb

bb:             ; preds = %bb, %entry
        %indvar = phi i32 [ 0, %entry ], [ %indvar.next, %bb ]          ; <i32> [#uses=3]
        %CurPtr_addr.0.rec = bitcast i32 %indvar to i32         ; <i32> [#uses=1]
        %gep.upgrd.1 = zext i32 %indvar to i64          ; <i64> [#uses=1]
        %CurPtr_addr.0 = getelementptr i8, i8* %CurPtr, i64 %gep.upgrd.1            ; <i8*> [#uses=1]
        %tmp = load i8, i8* %CurPtr_addr.0          ; <i8> [#uses=3]
        %tmp2.rec = add i32 %CurPtr_addr.0.rec, 1               ; <i32> [#uses=1]
        %tmp2 = getelementptr i8, i8* %CurPtr, i32 %tmp2.rec                ; <i8*> [#uses=1]
        %indvar.next = add i32 %indvar, 1               ; <i32> [#uses=1]
        switch i8 %tmp, label %bb [
                 i8 0, label %bb7
                 i8 120, label %bb7
        ]

bb7:            ; preds = %bb, %bb
        tail call void @foo( i8 %tmp )
        ret i8* %tmp2
}

declare void @foo(i8)