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llvm-mirror/test/CodeGen/ARM/fast-isel-cmp-imm.ll
Jim Grosbach 7f992f45da ARM: Clean up fast-isel machine verifier errors.
Lots of machine verifier errors result from using a plain GPR regclass
for incoming argument copies. A more restrictive rGPR class is more
appropriate since it more accurately represents what's happening, plus
it lines up better with isel later on so the verifier is happier.
Reduces the number of ARM fast-isel tests not running with the verifier
enabled by over half.

rdar://12594152

llvm-svn: 188592
2013-08-16 23:37:23 +00:00

252 lines
6.3 KiB
LLVM

; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=ARM
; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi -verify-machineinstrs | FileCheck %s --check-prefix=ARM
; RUN: llc < %s -O0 -fast-isel-abort -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=THUMB
define void @t1a(float %a) uwtable ssp {
entry:
; ARM: t1a
; THUMB: t1a
%cmp = fcmp oeq float %a, 0.000000e+00
; ARM: vcmpe.f32 s{{[0-9]+}}, #0
; THUMB: vcmpe.f32 s{{[0-9]+}}, #0
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
tail call void @foo()
br label %if.end
if.end: ; preds = %if.then, %entry
ret void
}
declare void @foo()
; Shouldn't be able to encode -0.0 imm.
define void @t1b(float %a) uwtable ssp {
entry:
; ARM: t1b
; THUMB: t1b
%cmp = fcmp oeq float %a, -0.000000e+00
; ARM: vldr
; ARM: vcmpe.f32 s{{[0-9]+}}, s{{[0-9]+}}
; THUMB: vldr
; THUMB: vcmpe.f32 s{{[0-9]+}}, s{{[0-9]+}}
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
tail call void @foo()
br label %if.end
if.end: ; preds = %if.then, %entry
ret void
}
define void @t2a(double %a) uwtable ssp {
entry:
; ARM: t2a
; THUMB: t2a
%cmp = fcmp oeq double %a, 0.000000e+00
; ARM: vcmpe.f64 d{{[0-9]+}}, #0
; THUMB: vcmpe.f64 d{{[0-9]+}}, #0
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
tail call void @foo()
br label %if.end
if.end: ; preds = %if.then, %entry
ret void
}
; Shouldn't be able to encode -0.0 imm.
define void @t2b(double %a) uwtable ssp {
entry:
; ARM: t2b
; THUMB: t2b
%cmp = fcmp oeq double %a, -0.000000e+00
; ARM: vldr
; ARM: vcmpe.f64 d{{[0-9]+}}, d{{[0-9]+}}
; THUMB: vldr
; THUMB: vcmpe.f64 d{{[0-9]+}}, d{{[0-9]+}}
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
tail call void @foo()
br label %if.end
if.end: ; preds = %if.then, %entry
ret void
}
define void @t4(i8 signext %a) uwtable ssp {
entry:
; ARM: t4
; THUMB: t4
%cmp = icmp eq i8 %a, -1
; ARM: cmn r{{[0-9]}}, #1
; THUMB: cmn.w r{{[0-9]}}, #1
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
tail call void @foo()
br label %if.end
if.end: ; preds = %if.then, %entry
ret void
}
define void @t5(i8 zeroext %a) uwtable ssp {
entry:
; ARM: t5
; THUMB: t5
%cmp = icmp eq i8 %a, 1
; ARM: cmp r{{[0-9]}}, #1
; THUMB: cmp r{{[0-9]}}, #1
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
tail call void @foo()
br label %if.end
if.end: ; preds = %if.then, %entry
ret void
}
define void @t6(i16 signext %a) uwtable ssp {
entry:
; ARM: t6
; THUMB: t6
%cmp = icmp eq i16 %a, -1
; ARM: cmn r{{[0-9]}}, #1
; THUMB: cmn.w r{{[0-9]}}, #1
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
tail call void @foo()
br label %if.end
if.end: ; preds = %if.then, %entry
ret void
}
define void @t7(i16 zeroext %a) uwtable ssp {
entry:
; ARM: t7
; THUMB: t7
%cmp = icmp eq i16 %a, 1
; ARM: cmp r{{[0-9]}}, #1
; THUMB: cmp r{{[0-9]}}, #1
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
tail call void @foo()
br label %if.end
if.end: ; preds = %if.then, %entry
ret void
}
define void @t8(i32 %a) uwtable ssp {
entry:
; ARM: t8
; THUMB: t8
%cmp = icmp eq i32 %a, -1
; ARM: cmn r{{[0-9]}}, #1
; THUMB: cmn.w r{{[0-9]}}, #1
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
tail call void @foo()
br label %if.end
if.end: ; preds = %if.then, %entry
ret void
}
define void @t9(i32 %a) uwtable ssp {
entry:
; ARM: t9
; THUMB: t9
%cmp = icmp eq i32 %a, 1
; ARM: cmp r{{[0-9]}}, #1
; THUMB: cmp r{{[0-9]}}, #1
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
tail call void @foo()
br label %if.end
if.end: ; preds = %if.then, %entry
ret void
}
define void @t10(i32 %a) uwtable ssp {
entry:
; ARM: t10
; THUMB: t10
%cmp = icmp eq i32 %a, 384
; ARM: cmp r{{[0-9]}}, #384
; THUMB: cmp.w r{{[0-9]}}, #384
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
tail call void @foo()
br label %if.end
if.end: ; preds = %if.then, %entry
ret void
}
define void @t11(i32 %a) uwtable ssp {
entry:
; ARM: t11
; THUMB: t11
%cmp = icmp eq i32 %a, 4096
; ARM: cmp r{{[0-9]}}, #4096
; THUMB: cmp.w r{{[0-9]}}, #4096
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
tail call void @foo()
br label %if.end
if.end: ; preds = %if.then, %entry
ret void
}
define void @t12(i8 %a) uwtable ssp {
entry:
; ARM: t12
; THUMB: t12
%cmp = icmp ugt i8 %a, -113
; ARM: cmp r{{[0-9]}}, #143
; THUMB: cmp r{{[0-9]}}, #143
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
tail call void @foo()
br label %if.end
if.end: ; preds = %if.then, %entry
ret void
}
; rdar://11038907
; When comparing LONG_MIN/INT_MIN use a cmp instruction.
define void @t13() nounwind ssp {
entry:
; ARM: t13
; THUMB: t13
%cmp = icmp slt i32 -123, -2147483648
; ARM: cmp r{{[0-9]}}, #-2147483648
; THUMB: cmp.w r{{[0-9]}}, #-2147483648
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
ret void
if.end: ; preds = %entry
ret void
}