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	Summary: Currently fast-isel-abort will only abort for regular instructions, and just warn for function calls, terminators, function arguments. There is already fast-isel-abort-args but nothing for calls and terminators. This change turns the fast-isel-abort options into an integer option, so that multiple levels of strictness can be defined. This will help no being surprised when the "abort" option indeed does not abort, and enables the possibility to write test that verifies that no intrinsics are forgotten by fast-isel. Reviewers: resistor, echristo Subscribers: jfb, llvm-commits Differential Revision: http://reviews.llvm.org/D7941 From: Mehdi Amini <mehdi.amini@apple.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230775 91177308-0d34-0410-b5e6-96231b3b80d8
		
			
				
	
	
		
			252 lines
		
	
	
		
			6.3 KiB
		
	
	
	
		
			LLVM
		
	
	
	
	
	
			
		
		
	
	
			252 lines
		
	
	
		
			6.3 KiB
		
	
	
	
		
			LLVM
		
	
	
	
	
	
; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=ARM
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; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi -verify-machineinstrs | FileCheck %s --check-prefix=ARM
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; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=THUMB
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define void @t1a(float %a) uwtable ssp {
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entry:
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; ARM: t1a
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; THUMB: t1a
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  %cmp = fcmp oeq float %a, 0.000000e+00
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; ARM: vcmpe.f32 s{{[0-9]+}}, #0
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; THUMB: vcmpe.f32 s{{[0-9]+}}, #0
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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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  tail call void @foo()
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  br label %if.end
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if.end:                                           ; preds = %if.then, %entry
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  ret void
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}
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declare void @foo()
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; Shouldn't be able to encode -0.0 imm.
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define void @t1b(float %a) uwtable ssp {
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entry:
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; ARM: t1b
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; THUMB: t1b
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  %cmp = fcmp oeq float %a, -0.000000e+00
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; ARM: vldr
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; ARM: vcmpe.f32 s{{[0-9]+}}, s{{[0-9]+}}
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; THUMB: vldr
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; THUMB: vcmpe.f32 s{{[0-9]+}}, s{{[0-9]+}}
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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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  tail call void @foo()
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  br label %if.end
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if.end:                                           ; preds = %if.then, %entry
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  ret void
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}
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define void @t2a(double %a) uwtable ssp {
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entry:
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; ARM: t2a
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; THUMB: t2a
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  %cmp = fcmp oeq double %a, 0.000000e+00
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; ARM: vcmpe.f64 d{{[0-9]+}}, #0
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; THUMB: vcmpe.f64 d{{[0-9]+}}, #0
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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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  tail call void @foo()
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  br label %if.end
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if.end:                                           ; preds = %if.then, %entry
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  ret void
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}
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; Shouldn't be able to encode -0.0 imm.
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define void @t2b(double %a) uwtable ssp {
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entry:
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; ARM: t2b
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; THUMB: t2b
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  %cmp = fcmp oeq double %a, -0.000000e+00
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; ARM: vldr
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; ARM: vcmpe.f64 d{{[0-9]+}}, d{{[0-9]+}}
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; THUMB: vldr
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; THUMB: vcmpe.f64 d{{[0-9]+}}, d{{[0-9]+}}
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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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  tail call void @foo()
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  br label %if.end
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if.end:                                           ; preds = %if.then, %entry
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  ret void
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}
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define void @t4(i8 signext %a) uwtable ssp {
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entry:
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; ARM: t4
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; THUMB: t4
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  %cmp = icmp eq i8 %a, -1
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; ARM: cmn r{{[0-9]}}, #1
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; THUMB: cmn.w r{{[0-9]}}, #1
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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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  tail call void @foo()
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  br label %if.end
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if.end:                                           ; preds = %if.then, %entry
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  ret void
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}
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define void @t5(i8 zeroext %a) uwtable ssp {
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entry:
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; ARM: t5
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; THUMB: t5
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  %cmp = icmp eq i8 %a, 1
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; ARM: cmp r{{[0-9]}}, #1
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; THUMB: cmp r{{[0-9]}}, #1
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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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  tail call void @foo()
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  br label %if.end
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if.end:                                           ; preds = %if.then, %entry
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  ret void
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}
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define void @t6(i16 signext %a) uwtable ssp {
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entry:
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; ARM: t6
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; THUMB: t6
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  %cmp = icmp eq i16 %a, -1
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; ARM: cmn r{{[0-9]}}, #1
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; THUMB: cmn.w r{{[0-9]}}, #1
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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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  tail call void @foo()
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  br label %if.end
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if.end:                                           ; preds = %if.then, %entry
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  ret void
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}
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define void @t7(i16 zeroext %a) uwtable ssp {
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entry:
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; ARM: t7
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; THUMB: t7
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  %cmp = icmp eq i16 %a, 1
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; ARM: cmp r{{[0-9]}}, #1
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; THUMB: cmp r{{[0-9]}}, #1
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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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  tail call void @foo()
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  br label %if.end
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if.end:                                           ; preds = %if.then, %entry
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  ret void
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}
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define void @t8(i32 %a) uwtable ssp {
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entry:
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; ARM: t8
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; THUMB: t8
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  %cmp = icmp eq i32 %a, -1
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; ARM: cmn r{{[0-9]}}, #1
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; THUMB: cmn.w r{{[0-9]}}, #1
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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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  tail call void @foo()
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  br label %if.end
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if.end:                                           ; preds = %if.then, %entry
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  ret void
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}
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define void @t9(i32 %a) uwtable ssp {
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entry:
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; ARM: t9
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; THUMB: t9
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  %cmp = icmp eq i32 %a, 1
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; ARM: cmp r{{[0-9]}}, #1
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; THUMB: cmp r{{[0-9]}}, #1
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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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  tail call void @foo()
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  br label %if.end
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if.end:                                           ; preds = %if.then, %entry
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  ret void
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}
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define void @t10(i32 %a) uwtable ssp {
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entry:
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; ARM: t10
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; THUMB: t10
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  %cmp = icmp eq i32 %a, 384
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; ARM: cmp r{{[0-9]}}, #384
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; THUMB: cmp.w r{{[0-9]}}, #384
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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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  tail call void @foo()
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  br label %if.end
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if.end:                                           ; preds = %if.then, %entry
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  ret void
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}
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define void @t11(i32 %a) uwtable ssp {
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entry:
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; ARM: t11
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; THUMB: t11
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  %cmp = icmp eq i32 %a, 4096
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; ARM: cmp r{{[0-9]}}, #4096
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; THUMB: cmp.w r{{[0-9]}}, #4096
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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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  tail call void @foo()
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  br label %if.end
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if.end:                                           ; preds = %if.then, %entry
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  ret void
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}
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define void @t12(i8 %a) uwtable ssp {
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entry:
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; ARM: t12
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; THUMB: t12
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  %cmp = icmp ugt i8 %a, -113
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; ARM: cmp r{{[0-9]}}, #143
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; THUMB: cmp r{{[0-9]}}, #143
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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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  tail call void @foo()
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  br label %if.end
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if.end:                                           ; preds = %if.then, %entry
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  ret void
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}
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; rdar://11038907
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; When comparing LONG_MIN/INT_MIN use a cmp instruction.
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define void @t13() nounwind ssp {
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entry:
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; ARM: t13
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; THUMB: t13
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  %cmp = icmp slt i32 -123, -2147483648
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; ARM: cmp r{{[0-9]}}, #-2147483648
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; THUMB: cmp.w r{{[0-9]}}, #-2147483648
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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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  ret void
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if.end:                                           ; preds = %entry
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  ret void
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}
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