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https://github.com/RPCS3/llvm-mirror.git
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7b7d569297
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 llvm-svn: 287162
71 lines
2.2 KiB
LLVM
71 lines
2.2 KiB
LLVM
; RUN: llc < %s -march=avr -mattr=movw,lpm | FileCheck %s
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; XFAIL: *
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; Tests the standard LPM instruction
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define i8 @test8(i8 addrspace(1)* %p) {
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; CHECK-LABEL: test8:
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; CHECK: movw r30, r24
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; CHECK: lpm r24, Z
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%1 = load i8, i8 addrspace(1)* %p
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ret i8 %1
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}
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define i16 @test16(i16 addrspace(1)* %p) {
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; CHECK-LABEL: test16:
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; CHECK: movw r30, r24
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; CHECK: lpm r24, Z+
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; CHECK: lpm r25, Z+
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%1 = load i16, i16 addrspace(1)* %p
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ret i16 %1
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}
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define i8 @test8postinc(i8 addrspace(1)* %x, i8 %y) {
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; CHECK-LABEL: test8postinc:
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; CHECK: movw r30, r24
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; CHECK: lpm {{.*}}, Z+
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entry:
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%cmp10 = icmp sgt i8 %y, 0
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br i1 %cmp10, label %for.body, label %for.end
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for.body: ; preds = %entry, %for.body
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%ret.013 = phi i8 [ %add, %for.body ], [ 0, %entry ]
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%i.012 = phi i8 [ %inc, %for.body ], [ 0, %entry ]
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%x.addr.011 = phi i8 addrspace(1)* [ %incdec.ptr, %for.body ], [ %x, %entry ]
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%incdec.ptr = getelementptr inbounds i8, i8 addrspace(1)* %x.addr.011, i16 1
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%0 = load i8, i8 addrspace(1)* %x.addr.011
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%add = add i8 %0, %ret.013
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%inc = add i8 %i.012, 1
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%exitcond = icmp eq i8 %inc, %y
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body, %entry
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%ret.0.lcssa = phi i8 [ 0, %entry ], [ %add, %for.body ]
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ret i8 %ret.0.lcssa
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}
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define i16 @test16postinc(i16 addrspace(1)* %x, i8 %y) {
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; CHECK-LABEL: test16postinc:
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; CHECK: movw r30, r24
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; CHECK: lpm {{.*}}, Z+
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; CHECK: lpm {{.*}}, Z+
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entry:
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%cmp5 = icmp sgt i8 %y, 0
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br i1 %cmp5, label %for.body, label %for.end
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for.body: ; preds = %entry, %for.body
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%ret.08 = phi i16 [ %add, %for.body ], [ 0, %entry ]
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%i.07 = phi i8 [ %inc, %for.body ], [ 0, %entry ]
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%x.addr.06 = phi i16 addrspace(1)* [ %incdec.ptr, %for.body ], [ %x, %entry ]
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%incdec.ptr = getelementptr inbounds i16, i16 addrspace(1)* %x.addr.06, i16 1
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%0 = load i16, i16 addrspace(1)* %x.addr.06
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%add = add nsw i16 %0, %ret.08
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%inc = add i8 %i.07, 1
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%exitcond = icmp eq i8 %inc, %y
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body, %entry
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%ret.0.lcssa = phi i16 [ 0, %entry ], [ %add, %for.body ]
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ret i16 %ret.0.lcssa
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}
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