llvm/test/CodeGen/AVR/store.ll
Dylan McKay d2c33c4ecb [AVR] Add the pseudo instruction expansion pass
Summary:
A lot of the pseudo instructions are required because LLVM assumes that
all integers of the same size as the pointer size are legal. This means
that it will not currently expand 16-bit instructions to their 8-bit
variants because it thinks 16-bit types are legal for the operations.

This also adds all of the CodeGen tests that required the pass to run.

Reviewers: arsenm, kparzysz

Subscribers: wdng, mgorny, modocache, llvm-commits

Differential Revision: https://reviews.llvm.org/D26577

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287162 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-16 21:58:04 +00:00

131 lines
4.2 KiB
LLVM

; RUN: llc -mattr=avr6,sram < %s -march=avr | FileCheck %s
define void @store8(i8* %x, i8 %y) {
; CHECK-LABEL: store8:
; CHECK: st {{[XYZ]}}, r22
store i8 %y, i8* %x
ret void
}
define void @store16(i16* %x, i16 %y) {
; CHECK-LABEL: store16:
; CHECK: st {{[YZ]}}, r22
; CHECK: std {{[YZ]}}+1, r23
store i16 %y, i16* %x
ret void
}
define void @store8disp(i8* %x, i8 %y) {
; CHECK-LABEL: store8disp:
; CHECK: std {{[YZ]}}+63, r22
%arrayidx = getelementptr inbounds i8, i8* %x, i16 63
store i8 %y, i8* %arrayidx
ret void
}
define void @store8nodisp(i8* %x, i8 %y) {
; CHECK-LABEL: store8nodisp:
; CHECK: movw r26, r24
; CHECK: subi r26, 192
; CHECK: sbci r27, 255
; CHECK: st {{[XYZ]}}, r22
%arrayidx = getelementptr inbounds i8, i8* %x, i16 64
store i8 %y, i8* %arrayidx
ret void
}
define void @store16disp(i16* %x, i16 %y) {
; CHECK-LABEL: store16disp:
; CHECK: std {{[YZ]}}+62, r22
; CHECK: std {{[YZ]}}+63, r23
%arrayidx = getelementptr inbounds i16, i16* %x, i16 31
store i16 %y, i16* %arrayidx
ret void
}
define void @store16nodisp(i16* %x, i16 %y) {
; CHECK-LABEL: store16nodisp:
; CHECK: movw r30, r24
; CHECK: subi r30, 192
; CHECK: sbci r31, 255
; CHECK: st {{[YZ]}}, r22
; CHECK: std {{[YZ]}}+1, r23
%arrayidx = getelementptr inbounds i16, i16* %x, i16 32
store i16 %y, i16* %arrayidx
ret void
}
define void @store8postinc(i8* %x, i8 %y) {
; CHECK-LABEL: store8postinc:
; CHECK: st {{[XYZ]}}+, {{.*}}
entry:
%tobool3 = icmp eq i8 %y, 0
br i1 %tobool3, label %while.end, label %while.body
while.body: ; preds = %entry, %while.body
%dec5.in = phi i8 [ %dec5, %while.body ], [ %y, %entry ]
%x.addr.04 = phi i8* [ %incdec.ptr, %while.body ], [ %x, %entry ]
%dec5 = add i8 %dec5.in, -1
%incdec.ptr = getelementptr inbounds i8, i8* %x.addr.04, i16 1
store i8 %dec5, i8* %x.addr.04
%tobool = icmp eq i8 %dec5, 0
br i1 %tobool, label %while.end, label %while.body
while.end: ; preds = %while.body, %entry
ret void
}
define void @store16postinc(i16* %x, i16 %y) {
; CHECK-LABEL: store16postinc:
; CHECK: st {{[XYZ]}}+, {{.*}}
; CHECK: st {{[XYZ]}}+, {{.*}}
entry:
%tobool3 = icmp eq i16 %y, 0
br i1 %tobool3, label %while.end, label %while.body
while.body: ; preds = %entry, %while.body
%dec5.in = phi i16 [ %dec5, %while.body ], [ %y, %entry ]
%x.addr.04 = phi i16* [ %incdec.ptr, %while.body ], [ %x, %entry ]
%dec5 = add nsw i16 %dec5.in, -1
%incdec.ptr = getelementptr inbounds i16, i16* %x.addr.04, i16 1
store i16 %dec5, i16* %x.addr.04
%tobool = icmp eq i16 %dec5, 0
br i1 %tobool, label %while.end, label %while.body
while.end: ; preds = %while.body, %entry
ret void
}
define void @store8predec(i8* %x, i8 %y) {
; CHECK-LABEL: store8predec:
; CHECK: st -{{[XYZ]}}, {{.*}}
entry:
%tobool3 = icmp eq i8 %y, 0
br i1 %tobool3, label %while.end, label %while.body
while.body: ; preds = %entry, %while.body
%dec5.in = phi i8 [ %dec5, %while.body ], [ %y, %entry ]
%x.addr.04 = phi i8* [ %incdec.ptr, %while.body ], [ %x, %entry ]
%dec5 = add i8 %dec5.in, -1
%incdec.ptr = getelementptr inbounds i8, i8* %x.addr.04, i16 -1
store i8 %dec5, i8* %incdec.ptr
%tobool = icmp eq i8 %dec5, 0
br i1 %tobool, label %while.end, label %while.body
while.end: ; preds = %while.body, %entry
ret void
}
define void @store16predec(i16* %x, i16 %y) {
; CHECK-LABEL: store16predec:
; CHECK: st -{{[XYZ]}}, {{.*}}
; CHECK: st -{{[XYZ]}}, {{.*}}
entry:
%tobool3 = icmp eq i16 %y, 0
br i1 %tobool3, label %while.end, label %while.body
while.body: ; preds = %entry, %while.body
%dec5.in = phi i16 [ %dec5, %while.body ], [ %y, %entry ]
%x.addr.04 = phi i16* [ %incdec.ptr, %while.body ], [ %x, %entry ]
%dec5 = add nsw i16 %dec5.in, -1
%incdec.ptr = getelementptr inbounds i16, i16* %x.addr.04, i16 -1
store i16 %dec5, i16* %incdec.ptr
%tobool = icmp eq i16 %dec5, 0
br i1 %tobool, label %while.end, label %while.body
while.end: ; preds = %while.body, %entry
ret void
}