; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv32-unknown-unknown %s -o - | FileCheck %s

;; NOTE: This does not check for structured control-flow operations.

; CHECK-DAG: OpName [[FOO:%.+]] "foo"
; CHECK-DAG: OpName [[BAR:%.+]] "bar"

; CHECK-DAG: %[[#I32:]] = OpTypeInt 32
; CHECK-DAG: %[[#BOOL:]] = OpTypeBool

declare i32 @foo()
declare i32 @bar()

define i32 @test_if(i32 %a, i32 %b) {
entry:
  %cond = icmp eq i32 %a, %b
  br i1 %cond, label %true_label, label %false_label

true_label:
  %v1 = call i32 @foo()
  br label %merge_label

false_label:
  %v2 = call i32 @bar()
  br label %merge_label

merge_label:
  %v = phi i32 [%v1, %true_label], [%v2, %false_label]
  ret i32 %v
}

; CHECK: OpFunction
; CHECK: %[[#A:]] = OpFunctionParameter %[[#I32]]
; CHECK: %[[#B:]] = OpFunctionParameter %[[#I32]]

; CHECK: %[[#ENTRY:]] = OpLabel
; CHECK: %[[#COND:]] = OpIEqual %[[#BOOL]] %[[#A]] %[[#B]]
; CHECK: OpBranchConditional %[[#COND]] %[[#TRUE_LABEL:]] %[[#FALSE_LABEL:]]

; CHECK: %[[#FALSE_LABEL]] = OpLabel
; CHECK: %[[#V2:]] = OpFunctionCall %[[#I32]] [[BAR]]
; CHECK: OpBranch %[[#MERGE_LABEL:]]

; CHECK: %[[#TRUE_LABEL]] = OpLabel
; CHECK: %[[#V1:]] = OpFunctionCall %[[#I32]] [[FOO]]
; CHECK: OpBranch %[[#MERGE_LABEL]]


; CHECK: %[[#MERGE_LABEL]] = OpLabel
; CHECK-NEXT: [[V:%.+]] = OpPhi %[[#I32]] %[[#V1]] %[[#TRUE_LABEL]] %[[#V2]] %[[#FALSE_LABEL]]
; CHECK: OpReturnValue [[V]]

; CHECK-NEXT: OpFunctionEnd