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llvm-project/llvm/test/CodeGen/X86/storetrunc-fp.ll

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[Codegen][X86] Modernize/regenerate old tests. NFCI. Summary: Switch to FileCheck where possible. Adjust tests so they can be easily regenerated by update scripts. Reviewers: craig.topper, spatel, RKSimon Reviewed By: spatel Subscribers: MatzeB, qcolombet, arphaman, jfb, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D71211
2019-12-09 23:47:47 +08:00
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-- | FileCheck %s
This commit changes: 1. Legalize now always promotes truncstore of i1 to i8. 2. Remove patterns and gunk related to truncstore i1 from targets. 3. Rename the StoreXAction stuff to TruncStoreAction in TLI. 4. Make the TLI TruncStoreAction table a 2d table to handle from/to conversions. 5. Mark a wide variety of invalid truncstores as such in various targets, e.g. X86 currently doesn't support truncstore of any of its integer types. 6. Add legalize support for truncstores with invalid value input types. 7. Add a dag combine transform to turn store(truncate) into truncstore when safe. The later allows us to compile CodeGen/X86/storetrunc-fp.ll to: _foo: fldt 20(%esp) fldt 4(%esp) faddp %st(1) movl 36(%esp), %eax fstps (%eax) ret instead of: _foo: subl $4, %esp fldt 24(%esp) fldt 8(%esp) faddp %st(1) fstps (%esp) movl 40(%esp), %eax movss (%esp), %xmm0 movss %xmm0, (%eax) addl $4, %esp ret llvm-svn: 46140
2008-01-18 03:59:44 +08:00
define void @foo(x86_fp80 %a, x86_fp80 %b, float* %fp) {
[Codegen][X86] Modernize/regenerate old tests. NFCI. Summary: Switch to FileCheck where possible. Adjust tests so they can be easily regenerated by update scripts. Reviewers: craig.topper, spatel, RKSimon Reviewed By: spatel Subscribers: MatzeB, qcolombet, arphaman, jfb, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D71211
2019-12-09 23:47:47 +08:00
; CHECK-LABEL: foo:
; CHECK: # %bb.0:
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
; CHECK-NEXT: fldt {{[0-9]+}}(%esp)
; CHECK-NEXT: fldt {{[0-9]+}}(%esp)
; CHECK-NEXT: faddp %st, %st(1)
; CHECK-NEXT: fstps (%eax)
; CHECK-NEXT: retl
Split the Add, Sub, and Mul instruction opcodes into separate integer and floating-point opcodes, introducing FAdd, FSub, and FMul. For now, the AsmParser, BitcodeReader, and IRBuilder all preserve backwards compatability, and the Core LLVM APIs preserve backwards compatibility for IR producers. Most front-ends won't need to change immediately. This implements the first step of the plan outlined here: http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt llvm-svn: 72897
2009-06-05 06:49:04 +08:00
%c = fadd x86_fp80 %a, %b
This commit changes: 1. Legalize now always promotes truncstore of i1 to i8. 2. Remove patterns and gunk related to truncstore i1 from targets. 3. Rename the StoreXAction stuff to TruncStoreAction in TLI. 4. Make the TLI TruncStoreAction table a 2d table to handle from/to conversions. 5. Mark a wide variety of invalid truncstores as such in various targets, e.g. X86 currently doesn't support truncstore of any of its integer types. 6. Add legalize support for truncstores with invalid value input types. 7. Add a dag combine transform to turn store(truncate) into truncstore when safe. The later allows us to compile CodeGen/X86/storetrunc-fp.ll to: _foo: fldt 20(%esp) fldt 4(%esp) faddp %st(1) movl 36(%esp), %eax fstps (%eax) ret instead of: _foo: subl $4, %esp fldt 24(%esp) fldt 8(%esp) faddp %st(1) fstps (%esp) movl 40(%esp), %eax movss (%esp), %xmm0 movss %xmm0, (%eax) addl $4, %esp ret llvm-svn: 46140
2008-01-18 03:59:44 +08:00
%d = fptrunc x86_fp80 %c to float
store float %d, float* %fp
ret void
}