forked from OSchip/llvm-project
132 lines
3.6 KiB
LLVM
132 lines
3.6 KiB
LLVM
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; RUN: opt < %s -inline -S | FileCheck %s
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; RUN: opt < %s -passes='cgscc(inline)' -S | FileCheck %s
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@a = global i32 4
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@_ZTIi = external global i8*
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; CHECK-LABEL: callSimpleFunction
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; CHECK: call i32 @simpleFunction
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define i32 @callSimpleFunction(i32 %idx, i32 %limit) {
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entry:
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%cmp = icmp sge i32 %idx, %limit
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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%s = call i32 @simpleFunction(i32 %idx)
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store i32 %s, i32* @a
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unreachable
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if.end:
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ret i32 %idx
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}
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; CHECK-LABEL: callSmallFunction
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; CHECK-NOT: call i32 @smallFunction
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define i32 @callSmallFunction(i32 %idx, i32 %limit) {
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entry:
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%cmp = icmp sge i32 %idx, %limit
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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%s = call i32 @smallFunction(i32 %idx)
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store i32 %s, i32* @a
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unreachable
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if.end:
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ret i32 %idx
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}
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; CHECK-LABEL: throwSimpleException
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; CHECK: invoke i32 @simpleFunction
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define i32 @throwSimpleException(i32 %idx, i32 %limit) #0 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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entry:
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%cmp = icmp sge i32 %idx, %limit
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br i1 %cmp, label %if.then, label %if.end
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if.then: ; preds = %entry
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%exception = call i8* @__cxa_allocate_exception(i64 1) #0
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invoke i32 @simpleFunction(i32 %idx)
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to label %invoke.cont unwind label %lpad
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invoke.cont: ; preds = %if.then
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call void @__cxa_throw(i8* %exception, i8* bitcast (i8** @_ZTIi to i8*), i8* null) #1
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unreachable
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lpad: ; preds = %if.then
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%ll = landingpad { i8*, i32 }
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cleanup
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ret i32 %idx
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if.end: ; preds = %entry
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ret i32 %idx
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}
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; CHECK-LABEL: throwSmallException
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; CHECK-NOT: invoke i32 @smallFunction
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define i32 @throwSmallException(i32 %idx, i32 %limit) #0 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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entry:
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%cmp = icmp sge i32 %idx, %limit
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br i1 %cmp, label %if.then, label %if.end
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if.then: ; preds = %entry
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%exception = call i8* @__cxa_allocate_exception(i64 1) #0
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invoke i32 @smallFunction(i32 %idx)
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to label %invoke.cont unwind label %lpad
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invoke.cont: ; preds = %if.then
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call void @__cxa_throw(i8* %exception, i8* bitcast (i8** @_ZTIi to i8*), i8* null) #1
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unreachable
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lpad: ; preds = %if.then
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%ll = landingpad { i8*, i32 }
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cleanup
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ret i32 %idx
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if.end: ; preds = %entry
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ret i32 %idx
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}
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define i32 @simpleFunction(i32 %a) #0 {
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entry:
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%a1 = load volatile i32, i32* @a
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%x1 = add i32 %a1, %a1
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%a2 = load volatile i32, i32* @a
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%x2 = add i32 %x1, %a2
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%a3 = load volatile i32, i32* @a
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%x3 = add i32 %x2, %a3
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%a4 = load volatile i32, i32* @a
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%x4 = add i32 %x3, %a4
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%a5 = load volatile i32, i32* @a
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%x5 = add i32 %x4, %a5
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%a6 = load volatile i32, i32* @a
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%x6 = add i32 %x5, %a6
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%a7 = load volatile i32, i32* @a
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%x7 = add i32 %x6, %a6
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%a8 = load volatile i32, i32* @a
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%x8 = add i32 %x7, %a8
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%a9 = load volatile i32, i32* @a
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%x9 = add i32 %x8, %a9
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%a10 = load volatile i32, i32* @a
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%x10 = add i32 %x9, %a10
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%a11 = load volatile i32, i32* @a
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%x11 = add i32 %x10, %a11
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%a12 = load volatile i32, i32* @a
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%x12 = add i32 %x11, %a12
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%add = add i32 %x12, %a
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ret i32 %add
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}
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define i32 @smallFunction(i32 %a) {
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entry:
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%r = load volatile i32, i32* @a
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ret i32 %r
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}
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attributes #0 = { nounwind }
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attributes #1 = { noreturn }
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declare i8* @__cxa_allocate_exception(i64)
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declare i32 @__gxx_personality_v0(...)
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declare void @__cxa_throw(i8*, i8*, i8*)
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